Remove unnecessary blink:: in renderer/core/html

We have bunch of "Trace(blink::Visitor*" in Blink though their classes
are also in blink namespace. This CL removes a part of such unnecessary
blink::.

This CL has no behavior changes.
This CL was produced by the following command on zsh:
  % for i in **/*.{h,cc}; sed -i "" -e "s/Trace(blink::/Trace(/g" $i

Change-Id: Ia7cc19c2b26ffee332dc2e66b2cb65f6895e9b51
Reviewed-on: https://chromium-review.googlesource.com/c/1428506
Reviewed-by: Keishi Hattori <keishi@chromium.org>
Commit-Queue: Kent Tamura <tkent@chromium.org>
Cr-Commit-Position: refs/heads/master@{#625160}
diff --git a/third_party/blink/renderer/core/html/anchor_element_metrics_sender.cc b/third_party/blink/renderer/core/html/anchor_element_metrics_sender.cc
index 55d61a5f..bfda5d5 100644
--- a/third_party/blink/renderer/core/html/anchor_element_metrics_sender.cc
+++ b/third_party/blink/renderer/core/html/anchor_element_metrics_sender.cc
@@ -96,7 +96,7 @@
   return anchor_elements_;
 }
 
-void AnchorElementMetricsSender::Trace(blink::Visitor* visitor) {
+void AnchorElementMetricsSender::Trace(Visitor* visitor) {
   visitor->Trace(anchor_elements_);
   Supplement<Document>::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/anchor_element_metrics_sender.h b/third_party/blink/renderer/core/html/anchor_element_metrics_sender.h
index d050dad..bfd7d58 100644
--- a/third_party/blink/renderer/core/html/anchor_element_metrics_sender.h
+++ b/third_party/blink/renderer/core/html/anchor_element_metrics_sender.h
@@ -53,7 +53,7 @@
   // Returns the stored |anchor_elements_|.
   const HeapHashSet<Member<HTMLAnchorElement>>& GetAnchorElements() const;
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   // Associates |metrics_host_| with the IPC interface if not already, so it can
diff --git a/third_party/blink/renderer/core/html/canvas/canvas_async_blob_creator.cc b/third_party/blink/renderer/core/html/canvas/canvas_async_blob_creator.cc
index bd9fc77..345ec01 100644
--- a/third_party/blink/renderer/core/html/canvas/canvas_async_blob_creator.cc
+++ b/third_party/blink/renderer/core/html/canvas/canvas_async_blob_creator.cc
@@ -588,7 +588,7 @@
                         TimeDelta::FromMillisecondsD(delay_ms));
 }
 
-void CanvasAsyncBlobCreator::Trace(blink::Visitor* visitor) {
+void CanvasAsyncBlobCreator::Trace(Visitor* visitor) {
   visitor->Trace(context_);
   visitor->Trace(encode_options_);
   visitor->Trace(callback_);
diff --git a/third_party/blink/renderer/core/html/canvas/canvas_async_blob_creator.h b/third_party/blink/renderer/core/html/canvas/canvas_async_blob_creator.h
index 4e8d51c..c2224e5 100644
--- a/third_party/blink/renderer/core/html/canvas/canvas_async_blob_creator.h
+++ b/third_party/blink/renderer/core/html/canvas/canvas_async_blob_creator.h
@@ -82,7 +82,7 @@
   virtual void SignalTaskSwitchInStartTimeoutEventForTesting() {}
   virtual void SignalTaskSwitchInCompleteTimeoutEventForTesting() {}
 
-  virtual void Trace(blink::Visitor*);
+  virtual void Trace(Visitor*);
 
   static sk_sp<SkColorSpace> BlobColorSpaceToSkColorSpace(
       String blob_color_space);
diff --git a/third_party/blink/renderer/core/html/canvas/canvas_font_cache.cc b/third_party/blink/renderer/core/html/canvas/canvas_font_cache.cc
index 30f411b..f9de29a 100644
--- a/third_party/blink/renderer/core/html/canvas/canvas_font_cache.cc
+++ b/third_party/blink/renderer/core/html/canvas/canvas_font_cache.cc
@@ -149,7 +149,7 @@
   fonts_resolved_using_default_style_.clear();
 }
 
-void CanvasFontCache::Trace(blink::Visitor* visitor) {
+void CanvasFontCache::Trace(Visitor* visitor) {
   visitor->Trace(fetched_fonts_);
   visitor->Trace(document_);
 }
diff --git a/third_party/blink/renderer/core/html/canvas/canvas_font_cache.h b/third_party/blink/renderer/core/html/canvas/canvas_font_cache.h
index 76cd710..5f22e68 100644
--- a/third_party/blink/renderer/core/html/canvas/canvas_font_cache.h
+++ b/third_party/blink/renderer/core/html/canvas/canvas_font_cache.h
@@ -37,7 +37,7 @@
   void PruneAll();
   unsigned size();
 
-  virtual void Trace(blink::Visitor*);
+  virtual void Trace(Visitor*);
 
   static unsigned MaxFonts();
   unsigned HardMaxFonts();
diff --git a/third_party/blink/renderer/core/html/canvas/canvas_rendering_context.cc b/third_party/blink/renderer/core/html/canvas/canvas_rendering_context.cc
index 8635028..16deefe 100644
--- a/third_party/blink/renderer/core/html/canvas/canvas_rendering_context.cc
+++ b/third_party/blink/renderer/core/html/canvas/canvas_rendering_context.cc
@@ -179,7 +179,7 @@
   return image_source->WouldTaintOrigin();
 }
 
-void CanvasRenderingContext::Trace(blink::Visitor* visitor) {
+void CanvasRenderingContext::Trace(Visitor* visitor) {
   visitor->Trace(host_);
   ScriptWrappable::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/canvas/canvas_rendering_context.h b/third_party/blink/renderer/core/html/canvas/canvas_rendering_context.h
index 86f55bdd..565a8b0 100644
--- a/third_party/blink/renderer/core/html/canvas/canvas_rendering_context.h
+++ b/third_party/blink/renderer/core/html/canvas/canvas_rendering_context.h
@@ -190,7 +190,7 @@
     return creation_attributes_;
   }
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
   virtual void Stop() = 0;
 
  protected:
diff --git a/third_party/blink/renderer/core/html/canvas/html_canvas_element.cc b/third_party/blink/renderer/core/html/canvas/html_canvas_element.cc
index cb63a12..5261bed 100644
--- a/third_party/blink/renderer/core/html/canvas/html_canvas_element.cc
+++ b/third_party/blink/renderer/core/html/canvas/html_canvas_element.cc
@@ -1108,7 +1108,7 @@
     context_->LoseContext(CanvasRenderingContext::kRealLostContext);
 }
 
-void HTMLCanvasElement::Trace(blink::Visitor* visitor) {
+void HTMLCanvasElement::Trace(Visitor* visitor) {
   visitor->Trace(listeners_);
   visitor->Trace(context_);
   ContextLifecycleObserver::Trace(visitor);
diff --git a/third_party/blink/renderer/core/html/canvas/html_canvas_element.h b/third_party/blink/renderer/core/html/canvas/html_canvas_element.h
index 9f1eaa3..59b612e 100644
--- a/third_party/blink/renderer/core/html/canvas/html_canvas_element.h
+++ b/third_party/blink/renderer/core/html/canvas/html_canvas_element.h
@@ -234,7 +234,7 @@
                            base::WeakPtr<CanvasResourceDispatcher>,
                            scoped_refptr<base::SingleThreadTaskRunner>,
                            unsigned resource_id) override;
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
   void SetResourceProviderForTesting(std::unique_ptr<CanvasResourceProvider>,
                                      std::unique_ptr<Canvas2DLayerBridge>,
diff --git a/third_party/blink/renderer/core/html/canvas/image_data.cc b/third_party/blink/renderer/core/html/canvas/image_data.cc
index c7fb8027..d6258f2 100644
--- a/third_party/blink/renderer/core/html/canvas/image_data.cc
+++ b/third_party/blink/renderer/core/html/canvas/image_data.cc
@@ -838,7 +838,7 @@
   return data_transform_successful;
 }
 
-void ImageData::Trace(blink::Visitor* visitor) {
+void ImageData::Trace(Visitor* visitor) {
   visitor->Trace(color_settings_);
   visitor->Trace(data_);
   visitor->Trace(data_u16_);
diff --git a/third_party/blink/renderer/core/html/canvas/image_data.h b/third_party/blink/renderer/core/html/canvas/image_data.h
index e5adfd8..d33e9aa 100644
--- a/third_party/blink/renderer/core/html/canvas/image_data.h
+++ b/third_party/blink/renderer/core/html/canvas/image_data.h
@@ -159,7 +159,7 @@
                                   base::Optional<IntRect> crop_rect,
                                   const ImageBitmapOptions*) override;
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
   WARN_UNUSED_RESULT v8::Local<v8::Object> AssociateWithWrapper(
       v8::Isolate*,
diff --git a/third_party/blink/renderer/core/html/canvas/text_metrics.cc b/third_party/blink/renderer/core/html/canvas/text_metrics.cc
index 7936129..20ec8f7 100644
--- a/third_party/blink/renderer/core/html/canvas/text_metrics.cc
+++ b/third_party/blink/renderer/core/html/canvas/text_metrics.cc
@@ -38,7 +38,7 @@
   return 0;
 }
 
-void TextMetrics::Trace(blink::Visitor* visitor) {
+void TextMetrics::Trace(Visitor* visitor) {
   visitor->Trace(baselines_);
   ScriptWrappable::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/canvas/text_metrics.h b/third_party/blink/renderer/core/html/canvas/text_metrics.h
index b6473de..4776eed 100644
--- a/third_party/blink/renderer/core/html/canvas/text_metrics.h
+++ b/third_party/blink/renderer/core/html/canvas/text_metrics.h
@@ -69,7 +69,7 @@
 
   static float GetFontBaseline(const TextBaseline&, const SimpleFontData&);
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   void Update(const Font&,
diff --git a/third_party/blink/renderer/core/html/collection_items_cache.h b/third_party/blink/renderer/core/html/collection_items_cache.h
index 5567f542..c311e30 100644
--- a/third_party/blink/renderer/core/html/collection_items_cache.h
+++ b/third_party/blink/renderer/core/html/collection_items_cache.h
@@ -47,7 +47,7 @@
   CollectionItemsCache();
   ~CollectionItemsCache();
 
-  void Trace(blink::Visitor* visitor) override {
+  void Trace(Visitor* visitor) override {
     visitor->Trace(cached_list_);
     Base::Trace(visitor);
   }
diff --git a/third_party/blink/renderer/core/html/custom/custom_element_definition.cc b/third_party/blink/renderer/core/html/custom/custom_element_definition.cc
index 837d180..62d852a 100644
--- a/third_party/blink/renderer/core/html/custom/custom_element_definition.cc
+++ b/third_party/blink/renderer/core/html/custom/custom_element_definition.cc
@@ -38,7 +38,7 @@
 
 CustomElementDefinition::~CustomElementDefinition() = default;
 
-void CustomElementDefinition::Trace(blink::Visitor* visitor) {
+void CustomElementDefinition::Trace(Visitor* visitor) {
   visitor->Trace(construction_stack_);
   visitor->Trace(default_style_sheets_);
 }
diff --git a/third_party/blink/renderer/core/html/custom/custom_element_definition.h b/third_party/blink/renderer/core/html/custom/custom_element_definition.h
index 20f94af..a47ce0f 100644
--- a/third_party/blink/renderer/core/html/custom/custom_element_definition.h
+++ b/third_party/blink/renderer/core/html/custom/custom_element_definition.h
@@ -41,7 +41,7 @@
 
   virtual ~CustomElementDefinition();
 
-  virtual void Trace(blink::Visitor*);
+  virtual void Trace(Visitor*);
   const char* NameInHeapSnapshot() const override {
     return "CustomElementDefinition";
   }
diff --git a/third_party/blink/renderer/core/html/custom/custom_element_reaction.cc b/third_party/blink/renderer/core/html/custom/custom_element_reaction.cc
index dfed4f8..dd88199 100644
--- a/third_party/blink/renderer/core/html/custom/custom_element_reaction.cc
+++ b/third_party/blink/renderer/core/html/custom/custom_element_reaction.cc
@@ -12,7 +12,7 @@
     CustomElementDefinition& definition)
     : definition_(definition) {}
 
-void CustomElementReaction::Trace(blink::Visitor* visitor) {
+void CustomElementReaction::Trace(Visitor* visitor) {
   visitor->Trace(definition_);
 }
 
diff --git a/third_party/blink/renderer/core/html/custom/custom_element_reaction.h b/third_party/blink/renderer/core/html/custom/custom_element_reaction.h
index 4bb598a..d83fecf 100644
--- a/third_party/blink/renderer/core/html/custom/custom_element_reaction.h
+++ b/third_party/blink/renderer/core/html/custom/custom_element_reaction.h
@@ -22,7 +22,7 @@
 
   virtual void Invoke(Element&) = 0;
 
-  virtual void Trace(blink::Visitor*);
+  virtual void Trace(Visitor*);
 
  protected:
   Member<CustomElementDefinition> definition_;
diff --git a/third_party/blink/renderer/core/html/custom/custom_element_reaction_queue.cc b/third_party/blink/renderer/core/html/custom/custom_element_reaction_queue.cc
index 2dc73b87..386f02a9 100644
--- a/third_party/blink/renderer/core/html/custom/custom_element_reaction_queue.cc
+++ b/third_party/blink/renderer/core/html/custom/custom_element_reaction_queue.cc
@@ -14,7 +14,7 @@
 
 CustomElementReactionQueue::~CustomElementReactionQueue() = default;
 
-void CustomElementReactionQueue::Trace(blink::Visitor* visitor) {
+void CustomElementReactionQueue::Trace(Visitor* visitor) {
   visitor->Trace(reactions_);
 }
 
diff --git a/third_party/blink/renderer/core/html/custom/custom_element_reaction_queue.h b/third_party/blink/renderer/core/html/custom/custom_element_reaction_queue.h
index 2166d18..04910fa 100644
--- a/third_party/blink/renderer/core/html/custom/custom_element_reaction_queue.h
+++ b/third_party/blink/renderer/core/html/custom/custom_element_reaction_queue.h
@@ -20,7 +20,7 @@
   CustomElementReactionQueue();
   ~CustomElementReactionQueue();
 
-  void Trace(blink::Visitor*);
+  void Trace(Visitor*);
 
   void Add(CustomElementReaction&);
   void InvokeReactions(Element&);
diff --git a/third_party/blink/renderer/core/html/custom/custom_element_reaction_stack.cc b/third_party/blink/renderer/core/html/custom/custom_element_reaction_stack.cc
index 2e6a761..da990e8 100644
--- a/third_party/blink/renderer/core/html/custom/custom_element_reaction_stack.cc
+++ b/third_party/blink/renderer/core/html/custom/custom_element_reaction_stack.cc
@@ -28,7 +28,7 @@
 
 CustomElementReactionStack::CustomElementReactionStack() = default;
 
-void CustomElementReactionStack::Trace(blink::Visitor* visitor) {
+void CustomElementReactionStack::Trace(Visitor* visitor) {
   visitor->Trace(map_);
   visitor->Trace(stack_);
   visitor->Trace(backup_queue_);
diff --git a/third_party/blink/renderer/core/html/custom/custom_element_reaction_stack.h b/third_party/blink/renderer/core/html/custom/custom_element_reaction_stack.h
index 4e67cbf..b445589 100644
--- a/third_party/blink/renderer/core/html/custom/custom_element_reaction_stack.h
+++ b/third_party/blink/renderer/core/html/custom/custom_element_reaction_stack.h
@@ -23,7 +23,7 @@
  public:
   CustomElementReactionStack();
 
-  void Trace(blink::Visitor*);
+  void Trace(Visitor*);
   const char* NameInHeapSnapshot() const override {
     return "CustomElementReactionStack";
   }
diff --git a/third_party/blink/renderer/core/html/custom/custom_element_reaction_stack_test.cc b/third_party/blink/renderer/core/html/custom/custom_element_reaction_stack_test.cc
index 449340f..b46132e 100644
--- a/third_party/blink/renderer/core/html/custom/custom_element_reaction_stack_test.cc
+++ b/third_party/blink/renderer/core/html/custom/custom_element_reaction_stack_test.cc
@@ -193,7 +193,7 @@
                  CustomElementReaction* reaction)
       : stack_(stack), element_(element), reaction_(reaction) {}
   ~EnqueueToStack() override = default;
-  void Trace(blink::Visitor* visitor) override {
+  void Trace(Visitor* visitor) override {
     Command::Trace(visitor);
     visitor->Trace(stack_);
     visitor->Trace(element_);
diff --git a/third_party/blink/renderer/core/html/custom/custom_element_reaction_test_helpers.h b/third_party/blink/renderer/core/html/custom/custom_element_reaction_test_helpers.h
index d74348d..a746fe3 100644
--- a/third_party/blink/renderer/core/html/custom/custom_element_reaction_test_helpers.h
+++ b/third_party/blink/renderer/core/html/custom/custom_element_reaction_test_helpers.h
@@ -27,7 +27,7 @@
  public:
   Command() = default;
   virtual ~Command() = default;
-  virtual void Trace(blink::Visitor* visitor) {}
+  virtual void Trace(Visitor* visitor) {}
   virtual void Run(Element&) = 0;
 
   DISALLOW_COPY_AND_ASSIGN(Command);
@@ -75,7 +75,7 @@
  public:
   Recurse(CustomElementReactionQueue* queue) : queue_(queue) {}
   ~Recurse() override = default;
-  void Trace(blink::Visitor* visitor) override {
+  void Trace(Visitor* visitor) override {
     Command::Trace(visitor);
     visitor->Trace(queue_);
   }
@@ -92,7 +92,7 @@
   Enqueue(CustomElementReactionQueue* queue, CustomElementReaction* reaction)
       : queue_(queue), reaction_(reaction) {}
   ~Enqueue() override = default;
-  void Trace(blink::Visitor* visitor) override {
+  void Trace(Visitor* visitor) override {
     Command::Trace(visitor);
     visitor->Trace(queue_);
     visitor->Trace(reaction_);
@@ -114,7 +114,7 @@
                 CustomElementDescriptor("mock-element", "mock-element"))),
         commands_(commands) {}
   ~TestReaction() override = default;
-  void Trace(blink::Visitor* visitor) override {
+  void Trace(Visitor* visitor) override {
     CustomElementReaction::Trace(visitor);
     visitor->Trace(commands_);
   }
diff --git a/third_party/blink/renderer/core/html/custom/custom_element_registry.cc b/third_party/blink/renderer/core/html/custom/custom_element_registry.cc
index 5aa7058..06817ada 100644
--- a/third_party/blink/renderer/core/html/custom/custom_element_registry.cc
+++ b/third_party/blink/renderer/core/html/custom/custom_element_registry.cc
@@ -93,7 +93,7 @@
       upgrade_candidates_(MakeGarbageCollected<UpgradeCandidateMap>()),
       reaction_stack_(&CustomElementReactionStack::Current()) {}
 
-void CustomElementRegistry::Trace(blink::Visitor* visitor) {
+void CustomElementRegistry::Trace(Visitor* visitor) {
   visitor->Trace(definitions_);
   visitor->Trace(owner_);
   visitor->Trace(v0_);
diff --git a/third_party/blink/renderer/core/html/custom/custom_element_registry.h b/third_party/blink/renderer/core/html/custom/custom_element_registry.h
index 63db6b7..e29f650 100644
--- a/third_party/blink/renderer/core/html/custom/custom_element_registry.h
+++ b/third_party/blink/renderer/core/html/custom/custom_element_registry.h
@@ -65,7 +65,7 @@
 
   void Entangle(V0CustomElementRegistrationContext*);
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   CustomElementDefinition* DefineInternal(ScriptState*,
diff --git a/third_party/blink/renderer/core/html/custom/custom_element_registry_test.cc b/third_party/blink/renderer/core/html/custom/custom_element_registry_test.cc
index bd39dca..0283563 100644
--- a/third_party/blink/renderer/core/html/custom/custom_element_registry_test.cc
+++ b/third_party/blink/renderer/core/html/custom/custom_element_registry_test.cc
@@ -174,7 +174,7 @@
             },
             {}) {}
 
-  void Trace(blink::Visitor* visitor) override {
+  void Trace(Visitor* visitor) override {
     TestCustomElementDefinition::Trace(visitor);
     visitor->Trace(element_);
     visitor->Trace(adopted_);
@@ -206,7 +206,7 @@
     Member<Document> old_owner_;
     Member<Document> new_owner_;
 
-    void Trace(blink::Visitor* visitor) {
+    void Trace(Visitor* visitor) {
       visitor->Trace(old_owner_);
       visitor->Trace(new_owner_);
     }
diff --git a/third_party/blink/renderer/core/html/custom/v0_custom_element_callback_invocation.cc b/third_party/blink/renderer/core/html/custom/v0_custom_element_callback_invocation.cc
index 1924c23..8550ba5 100644
--- a/third_party/blink/renderer/core/html/custom/v0_custom_element_callback_invocation.cc
+++ b/third_party/blink/renderer/core/html/custom/v0_custom_element_callback_invocation.cc
@@ -145,7 +145,7 @@
                                                           old_value, new_value);
 }
 
-void V0CustomElementCallbackInvocation::Trace(blink::Visitor* visitor) {
+void V0CustomElementCallbackInvocation::Trace(Visitor* visitor) {
   visitor->Trace(callbacks_);
   V0CustomElementProcessingStep::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/custom/v0_custom_element_callback_invocation.h b/third_party/blink/renderer/core/html/custom/v0_custom_element_callback_invocation.h
index c66adb6..23e4000 100644
--- a/third_party/blink/renderer/core/html/custom/v0_custom_element_callback_invocation.h
+++ b/third_party/blink/renderer/core/html/custom/v0_custom_element_callback_invocation.h
@@ -56,7 +56,7 @@
 
   V0CustomElementLifecycleCallbacks* Callbacks() { return callbacks_.Get(); }
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   Member<V0CustomElementLifecycleCallbacks> callbacks_;
diff --git a/third_party/blink/renderer/core/html/custom/v0_custom_element_callback_queue.cc b/third_party/blink/renderer/core/html/custom/v0_custom_element_callback_queue.cc
index c4de24b..a48515e 100644
--- a/third_party/blink/renderer/core/html/custom/v0_custom_element_callback_queue.cc
+++ b/third_party/blink/renderer/core/html/custom/v0_custom_element_callback_queue.cc
@@ -73,7 +73,7 @@
   return did_work;
 }
 
-void V0CustomElementCallbackQueue::Trace(blink::Visitor* visitor) {
+void V0CustomElementCallbackQueue::Trace(Visitor* visitor) {
   visitor->Trace(element_);
   visitor->Trace(queue_);
 }
diff --git a/third_party/blink/renderer/core/html/custom/v0_custom_element_callback_queue.h b/third_party/blink/renderer/core/html/custom/v0_custom_element_callback_queue.h
index 529e1c0..853be37 100644
--- a/third_party/blink/renderer/core/html/custom/v0_custom_element_callback_queue.h
+++ b/third_party/blink/renderer/core/html/custom/v0_custom_element_callback_queue.h
@@ -65,7 +65,7 @@
   }
   bool InCreatedCallback() const { return in_created_callback_; }
 
-  void Trace(blink::Visitor*);
+  void Trace(Visitor*);
 
  private:
   Member<Element> element_;
diff --git a/third_party/blink/renderer/core/html/custom/v0_custom_element_definition.cc b/third_party/blink/renderer/core/html/custom/v0_custom_element_definition.cc
index d7f446b..0856bbd 100644
--- a/third_party/blink/renderer/core/html/custom/v0_custom_element_definition.cc
+++ b/third_party/blink/renderer/core/html/custom/v0_custom_element_definition.cc
@@ -43,7 +43,7 @@
     V0CustomElementLifecycleCallbacks* callbacks)
     : descriptor_(descriptor), callbacks_(callbacks) {}
 
-void V0CustomElementDefinition::Trace(blink::Visitor* visitor) {
+void V0CustomElementDefinition::Trace(Visitor* visitor) {
   visitor->Trace(callbacks_);
 }
 
diff --git a/third_party/blink/renderer/core/html/custom/v0_custom_element_definition.h b/third_party/blink/renderer/core/html/custom/v0_custom_element_definition.h
index 6b5806d8..87b5f82 100644
--- a/third_party/blink/renderer/core/html/custom/v0_custom_element_definition.h
+++ b/third_party/blink/renderer/core/html/custom/v0_custom_element_definition.h
@@ -50,7 +50,7 @@
     return callbacks_.Get();
   }
 
-  void Trace(blink::Visitor*);
+  void Trace(Visitor*);
 
  private:
   V0CustomElementDescriptor descriptor_;
diff --git a/third_party/blink/renderer/core/html/custom/v0_custom_element_lifecycle_callbacks.h b/third_party/blink/renderer/core/html/custom/v0_custom_element_lifecycle_callbacks.h
index 0cc4712..6e3ed383 100644
--- a/third_party/blink/renderer/core/html/custom/v0_custom_element_lifecycle_callbacks.h
+++ b/third_party/blink/renderer/core/html/custom/v0_custom_element_lifecycle_callbacks.h
@@ -61,7 +61,7 @@
                                 const AtomicString& old_value,
                                 const AtomicString& new_value) = 0;
 
-  virtual void Trace(blink::Visitor* visitor) {}
+  virtual void Trace(Visitor* visitor) {}
 
  protected:
   explicit V0CustomElementLifecycleCallbacks(CallbackType type)
diff --git a/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_dispatcher.cc b/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_dispatcher.cc
index 81aa12e..fe023ce 100644
--- a/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_dispatcher.cc
+++ b/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_dispatcher.cc
@@ -76,7 +76,7 @@
   phase_ = kQuiescent;
 }
 
-void V0CustomElementMicrotaskDispatcher::Trace(blink::Visitor* visitor) {
+void V0CustomElementMicrotaskDispatcher::Trace(Visitor* visitor) {
   visitor->Trace(elements_);
 }
 
diff --git a/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_dispatcher.h b/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_dispatcher.h
index 482fe54..9aa1567 100644
--- a/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_dispatcher.h
+++ b/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_dispatcher.h
@@ -24,7 +24,7 @@
 
   bool ElementQueueIsEmpty() { return elements_.IsEmpty(); }
 
-  void Trace(blink::Visitor*);
+  void Trace(Visitor*);
 
  private:
   void EnsureMicrotaskScheduledForElementQueue();
diff --git a/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_import_step.cc b/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_import_step.cc
index 79977cc..765c797 100644
--- a/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_import_step.cc
+++ b/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_import_step.cc
@@ -70,7 +70,7 @@
   return kFinishedProcessing;
 }
 
-void V0CustomElementMicrotaskImportStep::Trace(blink::Visitor* visitor) {
+void V0CustomElementMicrotaskImportStep::Trace(Visitor* visitor) {
   visitor->Trace(import_);
   visitor->Trace(queue_);
   V0CustomElementMicrotaskStep::Trace(visitor);
diff --git a/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_import_step.h b/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_import_step.h
index eb152f5..71a23da1 100644
--- a/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_import_step.h
+++ b/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_import_step.h
@@ -59,7 +59,7 @@
   void Invalidate();
   void ImportDidFinishLoading();
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   void DidUpgradeAllCustomElements();
diff --git a/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_queue_base.cc b/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_queue_base.cc
index f600ae4..f043853 100644
--- a/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_queue_base.cc
+++ b/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_queue_base.cc
@@ -15,7 +15,7 @@
   in_dispatch_ = false;
 }
 
-void V0CustomElementMicrotaskQueueBase::Trace(blink::Visitor* visitor) {
+void V0CustomElementMicrotaskQueueBase::Trace(Visitor* visitor) {
   visitor->Trace(queue_);
 }
 
diff --git a/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_queue_base.h b/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_queue_base.h
index 36e6bd7..81efcc3 100644
--- a/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_queue_base.h
+++ b/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_queue_base.h
@@ -20,7 +20,7 @@
   bool IsEmpty() const { return queue_.IsEmpty(); }
   void Dispatch();
 
-  void Trace(blink::Visitor*);
+  void Trace(Visitor*);
 
 #if !defined(NDEBUG)
   void Show(unsigned indent);
diff --git a/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_resolution_step.cc b/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_resolution_step.cc
index eed6296..ca126aa0 100644
--- a/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_resolution_step.cc
+++ b/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_resolution_step.cc
@@ -59,7 +59,7 @@
   return V0CustomElementMicrotaskStep::kFinishedProcessing;
 }
 
-void V0CustomElementMicrotaskResolutionStep::Trace(blink::Visitor* visitor) {
+void V0CustomElementMicrotaskResolutionStep::Trace(Visitor* visitor) {
   visitor->Trace(context_);
   visitor->Trace(element_);
   V0CustomElementMicrotaskStep::Trace(visitor);
diff --git a/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_resolution_step.h b/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_resolution_step.h
index 83bb565..320286e 100644
--- a/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_resolution_step.h
+++ b/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_resolution_step.h
@@ -53,7 +53,7 @@
                                          const V0CustomElementDescriptor&);
   ~V0CustomElementMicrotaskResolutionStep() override;
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   Result Process() override;
diff --git a/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_run_queue.cc b/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_run_queue.cc
index bdf1062..b1c90e2 100644
--- a/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_run_queue.cc
+++ b/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_run_queue.cc
@@ -41,7 +41,7 @@
   dispatch_is_pending_ = true;
 }
 
-void V0CustomElementMicrotaskRunQueue::Trace(blink::Visitor* visitor) {
+void V0CustomElementMicrotaskRunQueue::Trace(Visitor* visitor) {
   visitor->Trace(sync_queue_);
   visitor->Trace(async_queue_);
 }
diff --git a/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_run_queue.h b/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_run_queue.h
index 9ac9749..654dd27 100644
--- a/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_run_queue.h
+++ b/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_run_queue.h
@@ -29,7 +29,7 @@
   void RequestDispatchIfNeeded();
   bool IsEmpty() const;
 
-  void Trace(blink::Visitor*);
+  void Trace(Visitor*);
 
  private:
   void Dispatch();
diff --git a/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_step.h b/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_step.h
index 03a9a24..c9f1cfc 100644
--- a/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_step.h
+++ b/third_party/blink/renderer/core/html/custom/v0_custom_element_microtask_step.h
@@ -46,7 +46,7 @@
 
   virtual Result Process() = 0;
 
-  virtual void Trace(blink::Visitor* visitor) {}
+  virtual void Trace(Visitor* visitor) {}
 
 #if !defined(NDEBUG)
   virtual void Show(unsigned indent) = 0;
diff --git a/third_party/blink/renderer/core/html/custom/v0_custom_element_observer.h b/third_party/blink/renderer/core/html/custom/v0_custom_element_observer.h
index 21b2f0b..3188803 100644
--- a/third_party/blink/renderer/core/html/custom/v0_custom_element_observer.h
+++ b/third_party/blink/renderer/core/html/custom/v0_custom_element_observer.h
@@ -46,7 +46,7 @@
   // API for CustomElement to kick off notifications
   static void NotifyElementWasDestroyed(Element*);
 
-  virtual void Trace(blink::Visitor* visitor) {}
+  virtual void Trace(Visitor* visitor) {}
 
  protected:
   V0CustomElementObserver() = default;
diff --git a/third_party/blink/renderer/core/html/custom/v0_custom_element_processing_stack.cc b/third_party/blink/renderer/core/html/custom/v0_custom_element_processing_stack.cc
index 1669ee0..63e9648 100644
--- a/third_party/blink/renderer/core/html/custom/v0_custom_element_processing_stack.cc
+++ b/third_party/blink/renderer/core/html/custom/v0_custom_element_processing_stack.cc
@@ -92,7 +92,7 @@
   ++element_queue_end_;
 }
 
-void V0CustomElementProcessingStack::Trace(blink::Visitor* visitor) {
+void V0CustomElementProcessingStack::Trace(Visitor* visitor) {
   visitor->Trace(flattened_processing_stack_);
 }
 
diff --git a/third_party/blink/renderer/core/html/custom/v0_custom_element_processing_stack.h b/third_party/blink/renderer/core/html/custom/v0_custom_element_processing_stack.h
index f03db16..62717b7 100644
--- a/third_party/blink/renderer/core/html/custom/v0_custom_element_processing_stack.h
+++ b/third_party/blink/renderer/core/html/custom/v0_custom_element_processing_stack.h
@@ -77,7 +77,7 @@
   static V0CustomElementProcessingStack& Instance();
   void Enqueue(V0CustomElementCallbackQueue*);
 
-  void Trace(blink::Visitor*);
+  void Trace(Visitor*);
 
  private:
   // The start of the element queue on the top of the processing
diff --git a/third_party/blink/renderer/core/html/custom/v0_custom_element_processing_step.h b/third_party/blink/renderer/core/html/custom/v0_custom_element_processing_step.h
index 69c5ff14..145b69bb 100644
--- a/third_party/blink/renderer/core/html/custom/v0_custom_element_processing_step.h
+++ b/third_party/blink/renderer/core/html/custom/v0_custom_element_processing_step.h
@@ -46,7 +46,7 @@
   virtual void Dispatch(Element*) = 0;
   virtual bool IsCreatedCallback() const { return false; }
 
-  virtual void Trace(blink::Visitor* visitor) {}
+  virtual void Trace(Visitor* visitor) {}
 
   DISALLOW_COPY_AND_ASSIGN(V0CustomElementProcessingStep);
 };
diff --git a/third_party/blink/renderer/core/html/custom/v0_custom_element_registration_context.cc b/third_party/blink/renderer/core/html/custom/v0_custom_element_registration_context.cc
index 73ad40a..dfef625 100644
--- a/third_party/blink/renderer/core/html/custom/v0_custom_element_registration_context.cc
+++ b/third_party/blink/renderer/core/html/custom/v0_custom_element_registration_context.cc
@@ -177,7 +177,7 @@
   registry_.SetV1(v1);
 }
 
-void V0CustomElementRegistrationContext::Trace(blink::Visitor* visitor) {
+void V0CustomElementRegistrationContext::Trace(Visitor* visitor) {
   visitor->Trace(candidates_);
   visitor->Trace(registry_);
 }
diff --git a/third_party/blink/renderer/core/html/custom/v0_custom_element_registration_context.h b/third_party/blink/renderer/core/html/custom/v0_custom_element_registration_context.h
index fbdc755..92e29a3 100644
--- a/third_party/blink/renderer/core/html/custom/v0_custom_element_registration_context.h
+++ b/third_party/blink/renderer/core/html/custom/v0_custom_element_registration_context.h
@@ -69,7 +69,7 @@
   bool NameIsDefined(const AtomicString& name) const;
   void SetV1(const CustomElementRegistry*);
 
-  void Trace(blink::Visitor*);
+  void Trace(Visitor*);
 
   // Instance creation
   void DidGiveTypeExtension(Element*, const AtomicString& type);
diff --git a/third_party/blink/renderer/core/html/custom/v0_custom_element_registry.cc b/third_party/blink/renderer/core/html/custom/v0_custom_element_registry.cc
index eccbfad7..3fe3575 100644
--- a/third_party/blink/renderer/core/html/custom/v0_custom_element_registry.cc
+++ b/third_party/blink/renderer/core/html/custom/v0_custom_element_registry.cc
@@ -140,7 +140,7 @@
   return v1_.Get() && v1_->NameIsDefined(name);
 }
 
-void V0CustomElementRegistry::Trace(blink::Visitor* visitor) {
+void V0CustomElementRegistry::Trace(Visitor* visitor) {
   visitor->Trace(definitions_);
   visitor->Trace(v1_);
 }
diff --git a/third_party/blink/renderer/core/html/custom/v0_custom_element_registry.h b/third_party/blink/renderer/core/html/custom/v0_custom_element_registry.h
index f549882..477589e 100644
--- a/third_party/blink/renderer/core/html/custom/v0_custom_element_registry.h
+++ b/third_party/blink/renderer/core/html/custom/v0_custom_element_registry.h
@@ -51,7 +51,7 @@
   DISALLOW_NEW();
 
  public:
-  void Trace(blink::Visitor*);
+  void Trace(Visitor*);
   void DocumentWasDetached() { document_was_detached_ = true; }
 
  protected:
diff --git a/third_party/blink/renderer/core/html/custom/v0_custom_element_upgrade_candidate_map.cc b/third_party/blink/renderer/core/html/custom/v0_custom_element_upgrade_candidate_map.cc
index a74a1b2..666a75d 100644
--- a/third_party/blink/renderer/core/html/custom/v0_custom_element_upgrade_candidate_map.cc
+++ b/third_party/blink/renderer/core/html/custom/v0_custom_element_upgrade_candidate_map.cc
@@ -90,7 +90,7 @@
   return candidates;
 }
 
-void V0CustomElementUpgradeCandidateMap::Trace(blink::Visitor* visitor) {
+void V0CustomElementUpgradeCandidateMap::Trace(Visitor* visitor) {
   visitor->Trace(upgrade_candidates_);
   visitor->Trace(unresolved_definitions_);
   V0CustomElementObserver::Trace(visitor);
diff --git a/third_party/blink/renderer/core/html/custom/v0_custom_element_upgrade_candidate_map.h b/third_party/blink/renderer/core/html/custom/v0_custom_element_upgrade_candidate_map.h
index de50041..f89f4ad 100644
--- a/third_party/blink/renderer/core/html/custom/v0_custom_element_upgrade_candidate_map.h
+++ b/third_party/blink/renderer/core/html/custom/v0_custom_element_upgrade_candidate_map.h
@@ -55,7 +55,7 @@
   void Add(const V0CustomElementDescriptor&, Element*);
   ElementSet* TakeUpgradeCandidatesFor(const V0CustomElementDescriptor&);
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   void ElementWasDestroyed(Element*) override;
diff --git a/third_party/blink/renderer/core/html/forms/base_button_input_type.cc b/third_party/blink/renderer/core/html/forms/base_button_input_type.cc
index 19f35f6..63476d1 100644
--- a/third_party/blink/renderer/core/html/forms/base_button_input_type.cc
+++ b/third_party/blink/renderer/core/html/forms/base_button_input_type.cc
@@ -46,7 +46,7 @@
 BaseButtonInputType::BaseButtonInputType(HTMLInputElement& element)
     : InputType(element), KeyboardClickableInputTypeView(element) {}
 
-void BaseButtonInputType::Trace(blink::Visitor* visitor) {
+void BaseButtonInputType::Trace(Visitor* visitor) {
   KeyboardClickableInputTypeView::Trace(visitor);
   InputType::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/forms/base_button_input_type.h b/third_party/blink/renderer/core/html/forms/base_button_input_type.h
index 829e130..5762feb7a 100644
--- a/third_party/blink/renderer/core/html/forms/base_button_input_type.h
+++ b/third_party/blink/renderer/core/html/forms/base_button_input_type.h
@@ -42,7 +42,7 @@
   USING_GARBAGE_COLLECTED_MIXIN(BaseButtonInputType);
 
  public:
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
   using InputType::GetElement;
 
  protected:
diff --git a/third_party/blink/renderer/core/html/forms/base_checkable_input_type.cc b/third_party/blink/renderer/core/html/forms/base_checkable_input_type.cc
index 2df7aaf..c1d194d 100644
--- a/third_party/blink/renderer/core/html/forms/base_checkable_input_type.cc
+++ b/third_party/blink/renderer/core/html/forms/base_checkable_input_type.cc
@@ -42,7 +42,7 @@
 
 using namespace html_names;
 
-void BaseCheckableInputType::Trace(blink::Visitor* visitor) {
+void BaseCheckableInputType::Trace(Visitor* visitor) {
   InputTypeView::Trace(visitor);
   InputType::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/forms/base_checkable_input_type.h b/third_party/blink/renderer/core/html/forms/base_checkable_input_type.h
index e7129cc..d9696d3 100644
--- a/third_party/blink/renderer/core/html/forms/base_checkable_input_type.h
+++ b/third_party/blink/renderer/core/html/forms/base_checkable_input_type.h
@@ -41,7 +41,7 @@
   USING_GARBAGE_COLLECTED_MIXIN(BaseCheckableInputType);
 
  public:
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
   using InputType::GetElement;
 
  protected:
diff --git a/third_party/blink/renderer/core/html/forms/chooser_only_temporal_input_type_view.cc b/third_party/blink/renderer/core/html/forms/chooser_only_temporal_input_type_view.cc
index 653a14d..f89a5d4 100644
--- a/third_party/blink/renderer/core/html/forms/chooser_only_temporal_input_type_view.cc
+++ b/third_party/blink/renderer/core/html/forms/chooser_only_temporal_input_type_view.cc
@@ -53,7 +53,7 @@
   DCHECK(!date_time_chooser_);
 }
 
-void ChooserOnlyTemporalInputTypeView::Trace(blink::Visitor* visitor) {
+void ChooserOnlyTemporalInputTypeView::Trace(Visitor* visitor) {
   visitor->Trace(input_type_);
   visitor->Trace(date_time_chooser_);
   InputTypeView::Trace(visitor);
diff --git a/third_party/blink/renderer/core/html/forms/chooser_only_temporal_input_type_view.h b/third_party/blink/renderer/core/html/forms/chooser_only_temporal_input_type_view.h
index 8bb8f7f..3ab8312 100644
--- a/third_party/blink/renderer/core/html/forms/chooser_only_temporal_input_type_view.h
+++ b/third_party/blink/renderer/core/html/forms/chooser_only_temporal_input_type_view.h
@@ -46,7 +46,7 @@
                                                   BaseTemporalInputType&);
   ChooserOnlyTemporalInputTypeView(HTMLInputElement&, BaseTemporalInputType&);
   ~ChooserOnlyTemporalInputTypeView() override;
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   void CloseDateTimeChooser();
diff --git a/third_party/blink/renderer/core/html/forms/clear_button_element.cc b/third_party/blink/renderer/core/html/forms/clear_button_element.cc
index ee59cc8..2439e2a 100644
--- a/third_party/blink/renderer/core/html/forms/clear_button_element.cc
+++ b/third_party/blink/renderer/core/html/forms/clear_button_element.cc
@@ -83,7 +83,7 @@
   return true;
 }
 
-void ClearButtonElement::Trace(blink::Visitor* visitor) {
+void ClearButtonElement::Trace(Visitor* visitor) {
   visitor->Trace(clear_button_owner_);
   HTMLDivElement::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/forms/clear_button_element.h b/third_party/blink/renderer/core/html/forms/clear_button_element.h
index 6fd8d0b..a3844e1 100644
--- a/third_party/blink/renderer/core/html/forms/clear_button_element.h
+++ b/third_party/blink/renderer/core/html/forms/clear_button_element.h
@@ -47,7 +47,7 @@
 
   void RemoveClearButtonOwner() { clear_button_owner_ = nullptr; }
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   void DetachLayoutTree(const AttachContext& = AttachContext()) override;
diff --git a/third_party/blink/renderer/core/html/forms/color_chooser.h b/third_party/blink/renderer/core/html/forms/color_chooser.h
index 7201276..87bdbc0 100644
--- a/third_party/blink/renderer/core/html/forms/color_chooser.h
+++ b/third_party/blink/renderer/core/html/forms/color_chooser.h
@@ -42,7 +42,7 @@
  public:
   ColorChooser();
   virtual ~ColorChooser();
-  void Trace(blink::Visitor* visitor) override {}
+  void Trace(Visitor* visitor) override {}
 
   virtual void SetSelectedColor(const Color&) {}
   virtual void EndChooser() {}
diff --git a/third_party/blink/renderer/core/html/forms/color_chooser_client.h b/third_party/blink/renderer/core/html/forms/color_chooser_client.h
index 845c5cc..f87e47e 100644
--- a/third_party/blink/renderer/core/html/forms/color_chooser_client.h
+++ b/third_party/blink/renderer/core/html/forms/color_chooser_client.h
@@ -45,7 +45,7 @@
 class CORE_EXPORT ColorChooserClient : public GarbageCollectedMixin {
  public:
   virtual ~ColorChooserClient();
-  void Trace(blink::Visitor* visitor) override {}
+  void Trace(Visitor* visitor) override {}
 
   virtual void DidChooseColor(const Color&) = 0;
   virtual void DidEndChooser() = 0;
diff --git a/third_party/blink/renderer/core/html/forms/color_chooser_popup_ui_controller.cc b/third_party/blink/renderer/core/html/forms/color_chooser_popup_ui_controller.cc
index b3b0711f..3187c0b 100644
--- a/third_party/blink/renderer/core/html/forms/color_chooser_popup_ui_controller.cc
+++ b/third_party/blink/renderer/core/html/forms/color_chooser_popup_ui_controller.cc
@@ -59,7 +59,7 @@
   // ~ColorChooserUIController calls EndChooser().
 }
 
-void ColorChooserPopupUIController::Trace(blink::Visitor* visitor) {
+void ColorChooserPopupUIController::Trace(Visitor* visitor) {
   visitor->Trace(chrome_client_);
   ColorChooserUIController::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/forms/color_chooser_popup_ui_controller.h b/third_party/blink/renderer/core/html/forms/color_chooser_popup_ui_controller.h
index 495d9ef..3d5dc3a7 100644
--- a/third_party/blink/renderer/core/html/forms/color_chooser_popup_ui_controller.h
+++ b/third_party/blink/renderer/core/html/forms/color_chooser_popup_ui_controller.h
@@ -54,7 +54,7 @@
                                 ChromeClient*,
                                 blink::ColorChooserClient*);
   ~ColorChooserPopupUIController() override;
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
   // ColorChooserUIController functions:
   void OpenUI() override;
diff --git a/third_party/blink/renderer/core/html/forms/color_chooser_ui_controller.cc b/third_party/blink/renderer/core/html/forms/color_chooser_ui_controller.cc
index 744cb14..bf0f558 100644
--- a/third_party/blink/renderer/core/html/forms/color_chooser_ui_controller.cc
+++ b/third_party/blink/renderer/core/html/forms/color_chooser_ui_controller.cc
@@ -41,7 +41,7 @@
 
 ColorChooserUIController::~ColorChooserUIController() {}
 
-void ColorChooserUIController::Trace(blink::Visitor* visitor) {
+void ColorChooserUIController::Trace(Visitor* visitor) {
   visitor->Trace(frame_);
   visitor->Trace(client_);
   ColorChooser::Trace(visitor);
diff --git a/third_party/blink/renderer/core/html/forms/color_chooser_ui_controller.h b/third_party/blink/renderer/core/html/forms/color_chooser_ui_controller.h
index 509c08d..4da2d67 100644
--- a/third_party/blink/renderer/core/html/forms/color_chooser_ui_controller.h
+++ b/third_party/blink/renderer/core/html/forms/color_chooser_ui_controller.h
@@ -54,7 +54,7 @@
 
   ColorChooserUIController(LocalFrame*, blink::ColorChooserClient*);
   ~ColorChooserUIController() override;
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
   void Dispose();
 
diff --git a/third_party/blink/renderer/core/html/forms/color_input_type.cc b/third_party/blink/renderer/core/html/forms/color_input_type.cc
index 1dc2430..5958e5b 100644
--- a/third_party/blink/renderer/core/html/forms/color_input_type.cc
+++ b/third_party/blink/renderer/core/html/forms/color_input_type.cc
@@ -82,7 +82,7 @@
 
 ColorInputType::~ColorInputType() = default;
 
-void ColorInputType::Trace(blink::Visitor* visitor) {
+void ColorInputType::Trace(Visitor* visitor) {
   visitor->Trace(chooser_);
   KeyboardClickableInputTypeView::Trace(visitor);
   ColorChooserClient::Trace(visitor);
diff --git a/third_party/blink/renderer/core/html/forms/color_input_type.h b/third_party/blink/renderer/core/html/forms/color_input_type.h
index 086e2f7..f755a60 100644
--- a/third_party/blink/renderer/core/html/forms/color_input_type.h
+++ b/third_party/blink/renderer/core/html/forms/color_input_type.h
@@ -48,7 +48,7 @@
   static InputType* Create(HTMLInputElement&);
   explicit ColorInputType(HTMLInputElement&);
   ~ColorInputType() override;
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
   using InputType::GetElement;
 
   // ColorChooserClient implementation.
diff --git a/third_party/blink/renderer/core/html/forms/date_time_chooser.h b/third_party/blink/renderer/core/html/forms/date_time_chooser.h
index dcbd07d..6738274 100644
--- a/third_party/blink/renderer/core/html/forms/date_time_chooser.h
+++ b/third_party/blink/renderer/core/html/forms/date_time_chooser.h
@@ -76,7 +76,7 @@
   // Returns a root AXObject in the DateTimeChooser if it's available.
   virtual AXObject* RootAXObject() = 0;
 
-  virtual void Trace(blink::Visitor* visitor) {}
+  virtual void Trace(Visitor* visitor) {}
 };
 
 }  // namespace blink
diff --git a/third_party/blink/renderer/core/html/forms/date_time_chooser_client.h b/third_party/blink/renderer/core/html/forms/date_time_chooser_client.h
index 5c4478c..7c65f22 100644
--- a/third_party/blink/renderer/core/html/forms/date_time_chooser_client.h
+++ b/third_party/blink/renderer/core/html/forms/date_time_chooser_client.h
@@ -42,7 +42,7 @@
 class CORE_EXPORT DateTimeChooserClient : public GarbageCollectedMixin {
  public:
   virtual ~DateTimeChooserClient();
-  void Trace(blink::Visitor* visitor) override {}
+  void Trace(Visitor* visitor) override {}
 
   virtual Element& OwnerElement() const = 0;
   // Called when user picked a value.
diff --git a/third_party/blink/renderer/core/html/forms/date_time_chooser_impl.cc b/third_party/blink/renderer/core/html/forms/date_time_chooser_impl.cc
index 71d1d6b..74ebd86 100644
--- a/third_party/blink/renderer/core/html/forms/date_time_chooser_impl.cc
+++ b/third_party/blink/renderer/core/html/forms/date_time_chooser_impl.cc
@@ -68,7 +68,7 @@
 
 DateTimeChooserImpl::~DateTimeChooserImpl() = default;
 
-void DateTimeChooserImpl::Trace(blink::Visitor* visitor) {
+void DateTimeChooserImpl::Trace(Visitor* visitor) {
   visitor->Trace(chrome_client_);
   visitor->Trace(client_);
   DateTimeChooser::Trace(visitor);
diff --git a/third_party/blink/renderer/core/html/forms/date_time_chooser_impl.h b/third_party/blink/renderer/core/html/forms/date_time_chooser_impl.h
index 66e127c..89b7064 100644
--- a/third_party/blink/renderer/core/html/forms/date_time_chooser_impl.h
+++ b/third_party/blink/renderer/core/html/forms/date_time_chooser_impl.h
@@ -58,7 +58,7 @@
   void EndChooser() override;
   AXObject* RootAXObject() override;
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   // PagePopupClient functions:
diff --git a/third_party/blink/renderer/core/html/forms/date_time_edit_element.cc b/third_party/blink/renderer/core/html/forms/date_time_edit_element.cc
index 3fc5fed2a..886ff81 100644
--- a/third_party/blink/renderer/core/html/forms/date_time_edit_element.cc
+++ b/third_party/blink/renderer/core/html/forms/date_time_edit_element.cc
@@ -522,7 +522,7 @@
 
 DateTimeEditElement::~DateTimeEditElement() = default;
 
-void DateTimeEditElement::Trace(blink::Visitor* visitor) {
+void DateTimeEditElement::Trace(Visitor* visitor) {
   visitor->Trace(fields_);
   visitor->Trace(edit_control_owner_);
   HTMLDivElement::Trace(visitor);
diff --git a/third_party/blink/renderer/core/html/forms/date_time_edit_element.h b/third_party/blink/renderer/core/html/forms/date_time_edit_element.h
index dbd2469..7dd3276 100644
--- a/third_party/blink/renderer/core/html/forms/date_time_edit_element.h
+++ b/third_party/blink/renderer/core/html/forms/date_time_edit_element.h
@@ -86,7 +86,7 @@
 
   DateTimeEditElement(Document&, EditControlOwner&);
   ~DateTimeEditElement() override;
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
   void AddField(DateTimeFieldElement*);
   bool AnyEditableFieldsHaveValues() const;
diff --git a/third_party/blink/renderer/core/html/forms/date_time_field_element.cc b/third_party/blink/renderer/core/html/forms/date_time_field_element.cc
index abf1c26..c1b93a2 100644
--- a/third_party/blink/renderer/core/html/forms/date_time_field_element.cc
+++ b/third_party/blink/renderer/core/html/forms/date_time_field_element.cc
@@ -45,7 +45,7 @@
                                            FieldOwner& field_owner)
     : HTMLSpanElement(document), field_owner_(&field_owner) {}
 
-void DateTimeFieldElement::Trace(blink::Visitor* visitor) {
+void DateTimeFieldElement::Trace(Visitor* visitor) {
   visitor->Trace(field_owner_);
   HTMLSpanElement::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/forms/date_time_field_element.h b/third_party/blink/renderer/core/html/forms/date_time_field_element.h
index 6a6cb1e..da9a87c 100644
--- a/third_party/blink/renderer/core/html/forms/date_time_field_element.h
+++ b/third_party/blink/renderer/core/html/forms/date_time_field_element.h
@@ -76,7 +76,7 @@
   virtual void StepUp() = 0;
   virtual String Value() const = 0;
   virtual String VisibleValue() const = 0;
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
   static float ComputeTextWidth(const ComputedStyle&, const String&);
 
diff --git a/third_party/blink/renderer/core/html/forms/external_date_time_chooser.cc b/third_party/blink/renderer/core/html/forms/external_date_time_chooser.cc
index c5dd324..0756ee8 100644
--- a/third_party/blink/renderer/core/html/forms/external_date_time_chooser.cc
+++ b/third_party/blink/renderer/core/html/forms/external_date_time_chooser.cc
@@ -57,7 +57,7 @@
 
 ExternalDateTimeChooser::~ExternalDateTimeChooser() = default;
 
-void ExternalDateTimeChooser::Trace(blink::Visitor* visitor) {
+void ExternalDateTimeChooser::Trace(Visitor* visitor) {
   visitor->Trace(client_);
   DateTimeChooser::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/forms/external_date_time_chooser.h b/third_party/blink/renderer/core/html/forms/external_date_time_chooser.h
index 4994a5f..aa863d5 100644
--- a/third_party/blink/renderer/core/html/forms/external_date_time_chooser.h
+++ b/third_party/blink/renderer/core/html/forms/external_date_time_chooser.h
@@ -45,7 +45,7 @@
 
   ExternalDateTimeChooser(DateTimeChooserClient*);
   ~ExternalDateTimeChooser() override;
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
   // The following functions are for DateTimeChooserCompletion.
   void DidChooseValue(const WebString&);
diff --git a/third_party/blink/renderer/core/html/forms/external_popup_menu.cc b/third_party/blink/renderer/core/html/forms/external_popup_menu.cc
index d859364..5296c0a 100644
--- a/third_party/blink/renderer/core/html/forms/external_popup_menu.cc
+++ b/third_party/blink/renderer/core/html/forms/external_popup_menu.cc
@@ -73,7 +73,7 @@
 
 ExternalPopupMenu::~ExternalPopupMenu() = default;
 
-void ExternalPopupMenu::Trace(blink::Visitor* visitor) {
+void ExternalPopupMenu::Trace(Visitor* visitor) {
   visitor->Trace(owner_element_);
   visitor->Trace(local_frame_);
   PopupMenu::Trace(visitor);
diff --git a/third_party/blink/renderer/core/html/forms/external_popup_menu.h b/third_party/blink/renderer/core/html/forms/external_popup_menu.h
index 12bcb90..c6536a4 100644
--- a/third_party/blink/renderer/core/html/forms/external_popup_menu.h
+++ b/third_party/blink/renderer/core/html/forms/external_popup_menu.h
@@ -64,7 +64,7 @@
   static int ToPopupMenuItemIndex(int index, HTMLSelectElement&);
   static int ToExternalPopupMenuItemIndex(int index, HTMLSelectElement&);
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   // PopupMenu methods:
diff --git a/third_party/blink/renderer/core/html/forms/file_input_type.cc b/third_party/blink/renderer/core/html/forms/file_input_type.cc
index 270f4a5..46a0f5f9 100644
--- a/third_party/blink/renderer/core/html/forms/file_input_type.cc
+++ b/third_party/blink/renderer/core/html/forms/file_input_type.cc
@@ -75,7 +75,7 @@
   return MakeGarbageCollected<FileInputType>(element);
 }
 
-void FileInputType::Trace(blink::Visitor* visitor) {
+void FileInputType::Trace(Visitor* visitor) {
   visitor->Trace(file_list_);
   KeyboardClickableInputTypeView::Trace(visitor);
   InputType::Trace(visitor);
diff --git a/third_party/blink/renderer/core/html/forms/file_input_type.h b/third_party/blink/renderer/core/html/forms/file_input_type.h
index c3ba76d..51568f3f 100644
--- a/third_party/blink/renderer/core/html/forms/file_input_type.h
+++ b/third_party/blink/renderer/core/html/forms/file_input_type.h
@@ -55,7 +55,7 @@
 
   FileInputType(HTMLInputElement&);
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
   using InputType::GetElement;
   static Vector<String> FilesFromFormControlState(const FormControlState&);
   static FileList* CreateFileList(const FileChooserFileInfoList& files,
diff --git a/third_party/blink/renderer/core/html/forms/form_controller.cc b/third_party/blink/renderer/core/html/forms/form_controller.cc
index 931a2c8..be7519f 100644
--- a/third_party/blink/renderer/core/html/forms/form_controller.cc
+++ b/third_party/blink/renderer/core/html/forms/form_controller.cc
@@ -318,7 +318,7 @@
 
   FormKeyGenerator() = default;
 
-  void Trace(blink::Visitor* visitor) { visitor->Trace(form_to_key_map_); }
+  void Trace(Visitor* visitor) { visitor->Trace(form_to_key_map_); }
   const AtomicString& FormKey(const HTMLFormControlElementWithState&);
   void WillDeleteForm(HTMLFormElement*);
 
@@ -407,7 +407,7 @@
 
 DocumentState::DocumentState(Document& document) : document_(document) {}
 
-void DocumentState::Trace(blink::Visitor* visitor) {
+void DocumentState::Trace(Visitor* visitor) {
   visitor->Trace(document_);
   visitor->Trace(form_controls_);
 }
@@ -474,7 +474,7 @@
 
 FormController::~FormController() = default;
 
-void FormController::Trace(blink::Visitor* visitor) {
+void FormController::Trace(Visitor* visitor) {
   visitor->Trace(document_state_);
   visitor->Trace(form_key_generator_);
 }
diff --git a/third_party/blink/renderer/core/html/forms/form_controller.h b/third_party/blink/renderer/core/html/forms/form_controller.h
index 4a1d44bf..b02828e9 100644
--- a/third_party/blink/renderer/core/html/forms/form_controller.h
+++ b/third_party/blink/renderer/core/html/forms/form_controller.h
@@ -79,7 +79,7 @@
 class DocumentState final : public GarbageCollectedFinalized<DocumentState> {
  public:
   DocumentState(Document& document);
-  void Trace(blink::Visitor*);
+  void Trace(Visitor*);
 
   void InvalidateControlList();
   Vector<String> ToStateVector();
@@ -96,7 +96,7 @@
  public:
   FormController(Document& document);
   ~FormController();
-  void Trace(blink::Visitor*);
+  void Trace(Visitor*);
 
   void InvalidateStatefulFormControlList();
   // This should be callled only by Document::formElementsState().
diff --git a/third_party/blink/renderer/core/html/forms/form_data.cc b/third_party/blink/renderer/core/html/forms/form_data.cc
index 63256a745..8a4627a 100644
--- a/third_party/blink/renderer/core/html/forms/form_data.cc
+++ b/third_party/blink/renderer/core/html/forms/form_data.cc
@@ -68,7 +68,7 @@
     return true;
   }
 
-  void Trace(blink::Visitor* visitor) override {
+  void Trace(Visitor* visitor) override {
     visitor->Trace(form_data_);
     PairIterable<String, FormDataEntryValue>::IterationSource::Trace(visitor);
   }
@@ -113,7 +113,7 @@
   return MakeGarbageCollected<FormData>(*form_data);
 }
 
-void FormData::Trace(blink::Visitor* visitor) {
+void FormData::Trace(Visitor* visitor) {
   visitor->Trace(entries_);
   ScriptWrappable::Trace(visitor);
 }
@@ -344,7 +344,7 @@
       << "'name' should be a USVString.";
 }
 
-void FormData::Entry::Trace(blink::Visitor* visitor) {
+void FormData::Entry::Trace(Visitor* visitor) {
   visitor->Trace(blob_);
 }
 
diff --git a/third_party/blink/renderer/core/html/forms/form_data.h b/third_party/blink/renderer/core/html/forms/form_data.h
index d3b6aeb..8335bbe 100644
--- a/third_party/blink/renderer/core/html/forms/form_data.h
+++ b/third_party/blink/renderer/core/html/forms/form_data.h
@@ -70,7 +70,7 @@
   // doesn't clone entries in it because they are immutable.
   FormData(const FormData& form_data);
   FormData();
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
   // FormData IDL interface.
   void append(const String& name, const String& value);
@@ -123,7 +123,7 @@
  public:
   Entry(const String& name, const String& value);
   Entry(const String& name, Blob* blob, const String& filename);
-  void Trace(blink::Visitor*);
+  void Trace(Visitor*);
 
   bool IsString() const { return !blob_; }
   bool isFile() const { return blob_; }
diff --git a/third_party/blink/renderer/core/html/forms/hidden_input_type.cc b/third_party/blink/renderer/core/html/forms/hidden_input_type.cc
index c4c2c1a..16df667 100644
--- a/third_party/blink/renderer/core/html/forms/hidden_input_type.cc
+++ b/third_party/blink/renderer/core/html/forms/hidden_input_type.cc
@@ -45,7 +45,7 @@
   return MakeGarbageCollected<HiddenInputType>(element);
 }
 
-void HiddenInputType::Trace(blink::Visitor* visitor) {
+void HiddenInputType::Trace(Visitor* visitor) {
   InputTypeView::Trace(visitor);
   InputType::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/forms/hidden_input_type.h b/third_party/blink/renderer/core/html/forms/hidden_input_type.h
index dfcc310..dfaa025 100644
--- a/third_party/blink/renderer/core/html/forms/hidden_input_type.h
+++ b/third_party/blink/renderer/core/html/forms/hidden_input_type.h
@@ -45,7 +45,7 @@
   HiddenInputType(HTMLInputElement& element)
       : InputType(element), InputTypeView(element) {}
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
   using InputType::GetElement;
 
  private:
diff --git a/third_party/blink/renderer/core/html/forms/html_form_control_element.cc b/third_party/blink/renderer/core/html/forms/html_form_control_element.cc
index 791c3fe..25e03d1 100644
--- a/third_party/blink/renderer/core/html/forms/html_form_control_element.cc
+++ b/third_party/blink/renderer/core/html/forms/html_form_control_element.cc
@@ -55,7 +55,7 @@
 
 HTMLFormControlElement::~HTMLFormControlElement() = default;
 
-void HTMLFormControlElement::Trace(blink::Visitor* visitor) {
+void HTMLFormControlElement::Trace(Visitor* visitor) {
   ListedElement::Trace(visitor);
   HTMLElement::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/forms/html_form_control_element.h b/third_party/blink/renderer/core/html/forms/html_form_control_element.h
index b67c3df..1bccce5 100644
--- a/third_party/blink/renderer/core/html/forms/html_form_control_element.h
+++ b/third_party/blink/renderer/core/html/forms/html_form_control_element.h
@@ -46,7 +46,7 @@
 
  public:
   ~HTMLFormControlElement() override;
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
   void formAction(USVStringOrTrustedURL&) const;
   void setFormAction(const USVStringOrTrustedURL&, ExceptionState&);
diff --git a/third_party/blink/renderer/core/html/forms/html_form_control_element_test.cc b/third_party/blink/renderer/core/html/forms/html_form_control_element_test.cc
index cdb3337..6726d520 100644
--- a/third_party/blink/renderer/core/html/forms/html_form_control_element_test.cc
+++ b/third_party/blink/renderer/core/html/forms/html_form_control_element_test.cc
@@ -44,7 +44,7 @@
 
   void DocumentDetached(const Document&) override {}
   void WillBeDestroyed() override {}
-  void Trace(blink::Visitor* visitor) override {
+  void Trace(Visitor* visitor) override {
     visitor->Trace(anchor_);
     ValidationMessageClient::Trace(visitor);
   }
diff --git a/third_party/blink/renderer/core/html/forms/html_form_controls_collection.cc b/third_party/blink/renderer/core/html/forms/html_form_controls_collection.cc
index d731939..3846dc3 100644
--- a/third_party/blink/renderer/core/html/forms/html_form_controls_collection.cc
+++ b/third_party/blink/renderer/core/html/forms/html_form_controls_collection.cc
@@ -221,7 +221,7 @@
   }
 }
 
-void HTMLFormControlsCollection::Trace(blink::Visitor* visitor) {
+void HTMLFormControlsCollection::Trace(Visitor* visitor) {
   visitor->Trace(cached_element_);
   HTMLCollection::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/forms/html_form_controls_collection.h b/third_party/blink/renderer/core/html/forms/html_form_controls_collection.h
index 590ea51..ed14f97 100644
--- a/third_party/blink/renderer/core/html/forms/html_form_controls_collection.h
+++ b/third_party/blink/renderer/core/html/forms/html_form_controls_collection.h
@@ -54,7 +54,7 @@
   HTMLElement* namedItem(const AtomicString& name) const override;
   void namedGetter(const AtomicString& name, RadioNodeListOrElement&);
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   void UpdateIdNameCache() const override;
diff --git a/third_party/blink/renderer/core/html/forms/html_form_element.cc b/third_party/blink/renderer/core/html/forms/html_form_element.cc
index 05075ab..6a73a896 100644
--- a/third_party/blink/renderer/core/html/forms/html_form_element.cc
+++ b/third_party/blink/renderer/core/html/forms/html_form_element.cc
@@ -90,7 +90,7 @@
 
 HTMLFormElement::~HTMLFormElement() = default;
 
-void HTMLFormElement::Trace(blink::Visitor* visitor) {
+void HTMLFormElement::Trace(Visitor* visitor) {
   visitor->Trace(past_names_map_);
   visitor->Trace(radio_button_group_scope_);
   visitor->Trace(listed_elements_);
diff --git a/third_party/blink/renderer/core/html/forms/html_form_element.h b/third_party/blink/renderer/core/html/forms/html_form_element.h
index 541780e..48e8bd0b 100644
--- a/third_party/blink/renderer/core/html/forms/html_form_element.h
+++ b/third_party/blink/renderer/core/html/forms/html_form_element.h
@@ -48,7 +48,7 @@
 
   explicit HTMLFormElement(Document&);
   ~HTMLFormElement() override;
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
   const AttrNameToTrustedType& GetCheckedAttributeTypes() const override;
 
diff --git a/third_party/blink/renderer/core/html/forms/html_input_element.cc b/third_party/blink/renderer/core/html/forms/html_input_element.cc
index a977209..b3b539f 100644
--- a/third_party/blink/renderer/core/html/forms/html_input_element.cc
+++ b/third_party/blink/renderer/core/html/forms/html_input_element.cc
@@ -87,7 +87,7 @@
 
   ListAttributeTargetObserver(const AtomicString& id, HTMLInputElement*);
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
   void IdTargetChanged() override;
 
  private:
@@ -135,7 +135,7 @@
   return input_element;
 }
 
-void HTMLInputElement::Trace(blink::Visitor* visitor) {
+void HTMLInputElement::Trace(Visitor* visitor) {
   visitor->Trace(input_type_);
   visitor->Trace(input_type_view_);
   visitor->Trace(list_attribute_target_observer_);
@@ -1809,7 +1809,7 @@
                        id),
       element_(element) {}
 
-void ListAttributeTargetObserver::Trace(blink::Visitor* visitor) {
+void ListAttributeTargetObserver::Trace(Visitor* visitor) {
   visitor->Trace(element_);
   IdTargetObserver::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/forms/html_input_element.h b/third_party/blink/renderer/core/html/forms/html_input_element.h
index 43bf4f6..429f69b 100644
--- a/third_party/blink/renderer/core/html/forms/html_input_element.h
+++ b/third_party/blink/renderer/core/html/forms/html_input_element.h
@@ -59,7 +59,7 @@
 
   HTMLInputElement(Document&, const CreateElementFlags);
   ~HTMLInputElement() override;
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
   // Returns attributes that should be checked against Trusted Types
   const AttrNameToTrustedType& GetCheckedAttributeTypes() const override;
diff --git a/third_party/blink/renderer/core/html/forms/html_output_element.cc b/third_party/blink/renderer/core/html/forms/html_output_element.cc
index bb88f6c..9944b41 100644
--- a/third_party/blink/renderer/core/html/forms/html_output_element.cc
+++ b/third_party/blink/renderer/core/html/forms/html_output_element.cc
@@ -123,7 +123,7 @@
   return HTMLElement::tabIndex();
 }
 
-void HTMLOutputElement::Trace(blink::Visitor* visitor) {
+void HTMLOutputElement::Trace(Visitor* visitor) {
   visitor->Trace(tokens_);
   HTMLFormControlElement::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/forms/html_output_element.h b/third_party/blink/renderer/core/html/forms/html_output_element.h
index 1228a32..036950c 100644
--- a/third_party/blink/renderer/core/html/forms/html_output_element.h
+++ b/third_party/blink/renderer/core/html/forms/html_output_element.h
@@ -57,7 +57,7 @@
     return is_default_value_mode_;
   }
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   void ParseAttribute(const AttributeModificationParams&) override;
diff --git a/third_party/blink/renderer/core/html/forms/html_select_element.cc b/third_party/blink/renderer/core/html/forms/html_select_element.cc
index 040fee3..3ead4ab 100644
--- a/third_party/blink/renderer/core/html/forms/html_select_element.cc
+++ b/third_party/blink/renderer/core/html/forms/html_select_element.cc
@@ -1843,7 +1843,7 @@
   return true;
 }
 
-void HTMLSelectElement::Trace(blink::Visitor* visitor) {
+void HTMLSelectElement::Trace(Visitor* visitor) {
   visitor->Trace(list_items_);
   visitor->Trace(last_on_change_option_);
   visitor->Trace(active_selection_anchor_);
@@ -2059,7 +2059,7 @@
 
   void Dispose() { observer_->disconnect(); }
 
-  void Trace(blink::Visitor* visitor) override {
+  void Trace(Visitor* visitor) override {
     visitor->Trace(select_);
     visitor->Trace(observer_);
     MutationObserver::Delegate::Trace(visitor);
diff --git a/third_party/blink/renderer/core/html/forms/html_select_element.h b/third_party/blink/renderer/core/html/forms/html_select_element.h
index c84e55e..c500b26 100644
--- a/third_party/blink/renderer/core/html/forms/html_select_element.h
+++ b/third_party/blink/renderer/core/html/forms/html_select_element.h
@@ -174,7 +174,7 @@
 
   bool HasNonInBodyInsertionMode() const override { return true; }
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
   void CloneNonAttributePropertiesFrom(const Element&,
                                        CloneChildrenFlag) override;
 
diff --git a/third_party/blink/renderer/core/html/forms/input_type.cc b/third_party/blink/renderer/core/html/forms/input_type.cc
index aa3ec18..340fe9a 100644
--- a/third_party/blink/renderer/core/html/forms/input_type.cc
+++ b/third_party/blink/renderer/core/html/forms/input_type.cc
@@ -139,7 +139,7 @@
 
 InputType::~InputType() = default;
 
-void InputType::Trace(blink::Visitor* visitor) {
+void InputType::Trace(Visitor* visitor) {
   visitor->Trace(element_);
 }
 
diff --git a/third_party/blink/renderer/core/html/forms/input_type.h b/third_party/blink/renderer/core/html/forms/input_type.h
index e7f61490..22475ab26 100644
--- a/third_party/blink/renderer/core/html/forms/input_type.h
+++ b/third_party/blink/renderer/core/html/forms/input_type.h
@@ -58,7 +58,7 @@
   static InputType* CreateText(HTMLInputElement&);
   static const AtomicString& NormalizeTypeName(const AtomicString&);
   virtual ~InputType();
-  virtual void Trace(blink::Visitor*);
+  virtual void Trace(Visitor*);
 
   virtual InputTypeView* CreateView() = 0;
   virtual const AtomicString& FormControlType() const = 0;
diff --git a/third_party/blink/renderer/core/html/forms/input_type_view.cc b/third_party/blink/renderer/core/html/forms/input_type_view.cc
index 5fdb93d..44911d94 100644
--- a/third_party/blink/renderer/core/html/forms/input_type_view.cc
+++ b/third_party/blink/renderer/core/html/forms/input_type_view.cc
@@ -40,7 +40,7 @@
 
 InputTypeView::~InputTypeView() = default;
 
-void InputTypeView::Trace(blink::Visitor* visitor) {
+void InputTypeView::Trace(Visitor* visitor) {
   visitor->Trace(element_);
 }
 
@@ -187,7 +187,7 @@
   return false;
 }
 
-void ClickHandlingState::Trace(blink::Visitor* visitor) {
+void ClickHandlingState::Trace(Visitor* visitor) {
   visitor->Trace(checked_radio_button);
   EventDispatchHandlingState::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/forms/input_type_view.h b/third_party/blink/renderer/core/html/forms/input_type_view.h
index 4fa9890..9e2d878 100644
--- a/third_party/blink/renderer/core/html/forms/input_type_view.h
+++ b/third_party/blink/renderer/core/html/forms/input_type_view.h
@@ -58,7 +58,7 @@
 
 class ClickHandlingState final : public EventDispatchHandlingState {
  public:
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
   bool checked;
   bool indeterminate;
@@ -71,7 +71,7 @@
 class CORE_EXPORT InputTypeView : public GarbageCollectedMixin {
  public:
   virtual ~InputTypeView();
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
   virtual bool SizeShouldIncludeDecoration(int default_size,
                                            int& preferred_size) const;
diff --git a/third_party/blink/renderer/core/html/forms/internal_popup_menu.cc b/third_party/blink/renderer/core/html/forms/internal_popup_menu.cc
index ef416ab..2e9105d 100644
--- a/third_party/blink/renderer/core/html/forms/internal_popup_menu.cc
+++ b/third_party/blink/renderer/core/html/forms/internal_popup_menu.cc
@@ -80,7 +80,7 @@
   scoped_refptr<FontData> GetFontData(const FontDescription&,
                                       const AtomicString&) override;
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   void FontsNeedUpdate(FontSelector*) override;
@@ -107,7 +107,7 @@
   DispatchInvalidationCallbacks();
 }
 
-void PopupMenuCSSFontSelector::Trace(blink::Visitor* visitor) {
+void PopupMenuCSSFontSelector::Trace(Visitor* visitor) {
   visitor->Trace(owner_font_selector_);
   CSSFontSelector::Trace(visitor);
   FontSelectorClient::Trace(visitor);
@@ -223,7 +223,7 @@
   DCHECK(!popup_);
 }
 
-void InternalPopupMenu::Trace(blink::Visitor* visitor) {
+void InternalPopupMenu::Trace(Visitor* visitor) {
   visitor->Trace(chrome_client_);
   visitor->Trace(owner_element_);
   PopupMenu::Trace(visitor);
diff --git a/third_party/blink/renderer/core/html/forms/internal_popup_menu.h b/third_party/blink/renderer/core/html/forms/internal_popup_menu.h
index 8c0085d7..548ee31 100644
--- a/third_party/blink/renderer/core/html/forms/internal_popup_menu.h
+++ b/third_party/blink/renderer/core/html/forms/internal_popup_menu.h
@@ -28,7 +28,7 @@
 
   InternalPopupMenu(ChromeClient*, HTMLSelectElement&);
   ~InternalPopupMenu() override;
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
   void Update();
 
diff --git a/third_party/blink/renderer/core/html/forms/listed_element.cc b/third_party/blink/renderer/core/html/forms/listed_element.cc
index cc6aa2d2..14728f9 100644
--- a/third_party/blink/renderer/core/html/forms/listed_element.cc
+++ b/third_party/blink/renderer/core/html/forms/listed_element.cc
@@ -59,7 +59,7 @@
 
   FormAttributeTargetObserver(const AtomicString& id, ListedElement*);
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
   void IdTargetChanged() override;
 
  private:
@@ -78,7 +78,7 @@
   // We can't call setForm here because it contains virtual calls.
 }
 
-void ListedElement::Trace(blink::Visitor* visitor) {
+void ListedElement::Trace(Visitor* visitor) {
   visitor->Trace(form_attribute_target_observer_);
   visitor->Trace(form_);
   visitor->Trace(validity_state_);
@@ -701,7 +701,7 @@
           id),
       element_(element) {}
 
-void FormAttributeTargetObserver::Trace(blink::Visitor* visitor) {
+void FormAttributeTargetObserver::Trace(Visitor* visitor) {
   visitor->Trace(element_);
   IdTargetObserver::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/forms/listed_element.h b/third_party/blink/renderer/core/html/forms/listed_element.h
index 075e096..b72ced5b 100644
--- a/third_party/blink/renderer/core/html/forms/listed_element.h
+++ b/third_party/blink/renderer/core/html/forms/listed_element.h
@@ -157,7 +157,7 @@
   // This should be called in Element::FinishParsingChildren() override.
   void TakeStateAndRestore();
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  protected:
   ListedElement();
diff --git a/third_party/blink/renderer/core/html/forms/multiple_fields_temporal_input_type_view.cc b/third_party/blink/renderer/core/html/forms/multiple_fields_temporal_input_type_view.cc
index 17eb4fe..1588d0f5 100644
--- a/third_party/blink/renderer/core/html/forms/multiple_fields_temporal_input_type_view.cc
+++ b/third_party/blink/renderer/core/html/forms/multiple_fields_temporal_input_type_view.cc
@@ -324,7 +324,7 @@
 MultipleFieldsTemporalInputTypeView::~MultipleFieldsTemporalInputTypeView() =
     default;
 
-void MultipleFieldsTemporalInputTypeView::Trace(blink::Visitor* visitor) {
+void MultipleFieldsTemporalInputTypeView::Trace(Visitor* visitor) {
   visitor->Trace(input_type_);
   InputTypeView::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/forms/multiple_fields_temporal_input_type_view.h b/third_party/blink/renderer/core/html/forms/multiple_fields_temporal_input_type_view.h
index f25ebbe..933d8dd 100644
--- a/third_party/blink/renderer/core/html/forms/multiple_fields_temporal_input_type_view.h
+++ b/third_party/blink/renderer/core/html/forms/multiple_fields_temporal_input_type_view.h
@@ -59,7 +59,7 @@
   MultipleFieldsTemporalInputTypeView(HTMLInputElement&,
                                       BaseTemporalInputType&);
   ~MultipleFieldsTemporalInputTypeView() override;
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   // DateTimeEditElement::EditControlOwner functions
diff --git a/third_party/blink/renderer/core/html/forms/picker_indicator_element.cc b/third_party/blink/renderer/core/html/forms/picker_indicator_element.cc
index 252e601..f308755 100644
--- a/third_party/blink/renderer/core/html/forms/picker_indicator_element.cc
+++ b/third_party/blink/renderer/core/html/forms/picker_indicator_element.cc
@@ -175,7 +175,7 @@
                    WebLocalizedString::kAXCalendarShowDatePicker)));
 }
 
-void PickerIndicatorElement::Trace(blink::Visitor* visitor) {
+void PickerIndicatorElement::Trace(Visitor* visitor) {
   visitor->Trace(picker_indicator_owner_);
   visitor->Trace(chooser_);
   HTMLDivElement::Trace(visitor);
diff --git a/third_party/blink/renderer/core/html/forms/picker_indicator_element.h b/third_party/blink/renderer/core/html/forms/picker_indicator_element.h
index b2d2834..64b6256f 100644
--- a/third_party/blink/renderer/core/html/forms/picker_indicator_element.h
+++ b/third_party/blink/renderer/core/html/forms/picker_indicator_element.h
@@ -61,7 +61,7 @@
 
   PickerIndicatorElement(Document&, PickerIndicatorOwner&);
   ~PickerIndicatorElement() override;
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
   void OpenPopup();
   void ClosePopup();
diff --git a/third_party/blink/renderer/core/html/forms/popup_menu.h b/third_party/blink/renderer/core/html/forms/popup_menu.h
index c2175a1..8a14dcb8 100644
--- a/third_party/blink/renderer/core/html/forms/popup_menu.h
+++ b/third_party/blink/renderer/core/html/forms/popup_menu.h
@@ -29,7 +29,7 @@
 class PopupMenu : public GarbageCollectedFinalized<PopupMenu> {
  public:
   virtual ~PopupMenu() = default;
-  virtual void Trace(blink::Visitor* visitor) {}
+  virtual void Trace(Visitor* visitor) {}
   virtual void Show() = 0;
   virtual void Hide() = 0;
   enum UpdateReason {
diff --git a/third_party/blink/renderer/core/html/forms/radio_button_group_scope.cc b/third_party/blink/renderer/core/html/forms/radio_button_group_scope.cc
index f4968e4..50b28e8 100644
--- a/third_party/blink/renderer/core/html/forms/radio_button_group_scope.cc
+++ b/third_party/blink/renderer/core/html/forms/radio_button_group_scope.cc
@@ -43,7 +43,7 @@
   bool Contains(HTMLInputElement*) const;
   unsigned size() const;
 
-  void Trace(blink::Visitor*);
+  void Trace(Visitor*);
 
  private:
   void SetNeedsValidityCheckForAllButtons();
@@ -195,7 +195,7 @@
   return members_.size();
 }
 
-void RadioButtonGroup::Trace(blink::Visitor* visitor) {
+void RadioButtonGroup::Trace(Visitor* visitor) {
   visitor->Trace(members_);
   visitor->Trace(checked_button_);
 }
@@ -297,7 +297,7 @@
   }
 }
 
-void RadioButtonGroupScope::Trace(blink::Visitor* visitor) {
+void RadioButtonGroupScope::Trace(Visitor* visitor) {
   visitor->Trace(name_to_group_map_);
 }
 
diff --git a/third_party/blink/renderer/core/html/forms/radio_button_group_scope.h b/third_party/blink/renderer/core/html/forms/radio_button_group_scope.h
index 8c8c9a2..11399c9 100644
--- a/third_party/blink/renderer/core/html/forms/radio_button_group_scope.h
+++ b/third_party/blink/renderer/core/html/forms/radio_button_group_scope.h
@@ -37,7 +37,7 @@
  public:
   RadioButtonGroupScope();
   ~RadioButtonGroupScope();
-  void Trace(blink::Visitor*);
+  void Trace(Visitor*);
   void AddButton(HTMLInputElement*);
   void UpdateCheckedState(HTMLInputElement*);
   void RequiredAttributeChanged(HTMLInputElement*);
diff --git a/third_party/blink/renderer/core/html/forms/range_input_type.cc b/third_party/blink/renderer/core/html/forms/range_input_type.cc
index d32bc57..34d7308 100644
--- a/third_party/blink/renderer/core/html/forms/range_input_type.cc
+++ b/third_party/blink/renderer/core/html/forms/range_input_type.cc
@@ -79,7 +79,7 @@
       InputTypeView(element),
       tick_mark_values_dirty_(true) {}
 
-void RangeInputType::Trace(blink::Visitor* visitor) {
+void RangeInputType::Trace(Visitor* visitor) {
   InputTypeView::Trace(visitor);
   InputType::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/forms/range_input_type.h b/third_party/blink/renderer/core/html/forms/range_input_type.h
index a0bd003..ca8e69e 100644
--- a/third_party/blink/renderer/core/html/forms/range_input_type.h
+++ b/third_party/blink/renderer/core/html/forms/range_input_type.h
@@ -47,7 +47,7 @@
 
   RangeInputType(HTMLInputElement&);
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
   using InputType::GetElement;
 
  private:
diff --git a/third_party/blink/renderer/core/html/forms/spin_button_element.cc b/third_party/blink/renderer/core/html/forms/spin_button_element.cc
index 8406889..38ae215 100644
--- a/third_party/blink/renderer/core/html/forms/spin_button_element.cc
+++ b/third_party/blink/renderer/core/html/forms/spin_button_element.cc
@@ -250,7 +250,7 @@
          spin_button_owner_->ShouldSpinButtonRespondToMouseEvents();
 }
 
-void SpinButtonElement::Trace(blink::Visitor* visitor) {
+void SpinButtonElement::Trace(Visitor* visitor) {
   visitor->Trace(spin_button_owner_);
   HTMLDivElement::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/forms/spin_button_element.h b/third_party/blink/renderer/core/html/forms/spin_button_element.h
index 13b586d7..4777325 100644
--- a/third_party/blink/renderer/core/html/forms/spin_button_element.h
+++ b/third_party/blink/renderer/core/html/forms/spin_button_element.h
@@ -77,7 +77,7 @@
 
   void ForwardEvent(Event&);
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   void DetachLayoutTree(const AttachContext&) override;
diff --git a/third_party/blink/renderer/core/html/forms/text_field_input_type.cc b/third_party/blink/renderer/core/html/forms/text_field_input_type.cc
index 0968da4..412d25b3 100644
--- a/third_party/blink/renderer/core/html/forms/text_field_input_type.cc
+++ b/third_party/blink/renderer/core/html/forms/text_field_input_type.cc
@@ -113,7 +113,7 @@
 
 TextFieldInputType::~TextFieldInputType() = default;
 
-void TextFieldInputType::Trace(blink::Visitor* visitor) {
+void TextFieldInputType::Trace(Visitor* visitor) {
   InputTypeView::Trace(visitor);
   InputType::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/forms/text_field_input_type.h b/third_party/blink/renderer/core/html/forms/text_field_input_type.h
index 77ced4a..c2aeaaae 100644
--- a/third_party/blink/renderer/core/html/forms/text_field_input_type.h
+++ b/third_party/blink/renderer/core/html/forms/text_field_input_type.h
@@ -45,7 +45,7 @@
   USING_GARBAGE_COLLECTED_MIXIN(TextFieldInputType);
 
  public:
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
   using InputType::GetElement;
 
  protected:
diff --git a/third_party/blink/renderer/core/html/forms/validity_state.h b/third_party/blink/renderer/core/html/forms/validity_state.h
index 7daa760..7e8ad13 100644
--- a/third_party/blink/renderer/core/html/forms/validity_state.h
+++ b/third_party/blink/renderer/core/html/forms/validity_state.h
@@ -40,7 +40,7 @@
 
   explicit ValidityState(ListedElement* control) : control_(control) {}
 
-  void Trace(blink::Visitor* visitor) override {
+  void Trace(Visitor* visitor) override {
     visitor->Trace(control_);
     ScriptWrappable::Trace(visitor);
   }
diff --git a/third_party/blink/renderer/core/html/html_anchor_element.cc b/third_party/blink/renderer/core/html/html_anchor_element.cc
index b5116c1..4e28a54 100644
--- a/third_party/blink/renderer/core/html/html_anchor_element.cc
+++ b/third_party/blink/renderer/core/html/html_anchor_element.cc
@@ -501,7 +501,7 @@
   return request;
 }
 
-void HTMLAnchorElement::Trace(blink::Visitor* visitor) {
+void HTMLAnchorElement::Trace(Visitor* visitor) {
   visitor->Trace(rel_list_);
   HTMLElement::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/html_anchor_element.h b/third_party/blink/renderer/core/html/html_anchor_element.h
index 6c94b3c..7fdb334 100644
--- a/third_party/blink/renderer/core/html/html_anchor_element.h
+++ b/third_party/blink/renderer/core/html/html_anchor_element.h
@@ -100,7 +100,7 @@
 
   void SendPings(const KURL& destination_url) const;
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  protected:
   void ParseAttribute(const AttributeModificationParams&) override;
diff --git a/third_party/blink/renderer/core/html/html_collection.cc b/third_party/blink/renderer/core/html/html_collection.cc
index ca67e17..b869222 100644
--- a/third_party/blink/renderer/core/html/html_collection.cc
+++ b/third_party/blink/renderer/core/html/html_collection.cc
@@ -543,7 +543,7 @@
 
 HTMLCollection::NamedItemCache::NamedItemCache() = default;
 
-void HTMLCollection::Trace(blink::Visitor* visitor) {
+void HTMLCollection::Trace(Visitor* visitor) {
   visitor->Trace(named_item_cache_);
   visitor->Trace(collection_items_cache_);
   ScriptWrappable::Trace(visitor);
diff --git a/third_party/blink/renderer/core/html/html_collection.h b/third_party/blink/renderer/core/html/html_collection.h
index 0ba2dfa..da96826 100644
--- a/third_party/blink/renderer/core/html/html_collection.h
+++ b/third_party/blink/renderer/core/html/html_collection.h
@@ -112,7 +112,7 @@
   Iterator begin() const { return Iterator(this); }
   Iterator end() const { return Iterator::CreateEnd(this); }
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  protected:
   class NamedItemCache final : public GarbageCollected<NamedItemCache> {
@@ -144,7 +144,7 @@
       AddElementToMap(name_cache_, name, element);
     }
 
-    void Trace(blink::Visitor* visitor) {
+    void Trace(Visitor* visitor) {
       visitor->Trace(id_cache_);
       visitor->Trace(name_cache_);
     }
diff --git a/third_party/blink/renderer/core/html/html_content_element.cc b/third_party/blink/renderer/core/html/html_content_element.cc
index 0080099..497d690 100644
--- a/third_party/blink/renderer/core/html/html_content_element.cc
+++ b/third_party/blink/renderer/core/html/html_content_element.cc
@@ -49,7 +49,7 @@
 
 HTMLContentElement::~HTMLContentElement() = default;
 
-void HTMLContentElement::Trace(blink::Visitor* visitor) {
+void HTMLContentElement::Trace(Visitor* visitor) {
   V0InsertionPoint::Trace(visitor);
 }
 
diff --git a/third_party/blink/renderer/core/html/html_content_element.h b/third_party/blink/renderer/core/html/html_content_element.h
index 799f73f..e471352 100644
--- a/third_party/blink/renderer/core/html/html_content_element.h
+++ b/third_party/blink/renderer/core/html/html_content_element.h
@@ -55,7 +55,7 @@
   const CSSSelectorList& SelectorList() const;
   bool IsSelectValid() const;
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   void ParseAttribute(const AttributeModificationParams&) override;
diff --git a/third_party/blink/renderer/core/html/html_frame_owner_element.cc b/third_party/blink/renderer/core/html/html_frame_owner_element.cc
index c4ff92a..45e01e34 100644
--- a/third_party/blink/renderer/core/html/html_frame_owner_element.cc
+++ b/third_party/blink/renderer/core/html/html_frame_owner_element.cc
@@ -488,7 +488,7 @@
   }
 }
 
-void HTMLFrameOwnerElement::Trace(blink::Visitor* visitor) {
+void HTMLFrameOwnerElement::Trace(Visitor* visitor) {
   visitor->Trace(content_frame_);
   visitor->Trace(embedded_content_view_);
   visitor->Trace(lazy_load_frame_observer_);
diff --git a/third_party/blink/renderer/core/html/html_frame_owner_element.h b/third_party/blink/renderer/core/html/html_frame_owner_element.h
index e4f22d0..a7ae9db 100644
--- a/third_party/blink/renderer/core/html/html_frame_owner_element.h
+++ b/third_party/blink/renderer/core/html/html_frame_owner_element.h
@@ -127,7 +127,7 @@
 
   void ParseAttribute(const AttributeModificationParams&) override;
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  protected:
   HTMLFrameOwnerElement(const QualifiedName& tag_name, Document&);
diff --git a/third_party/blink/renderer/core/html/html_iframe_element.cc b/third_party/blink/renderer/core/html/html_iframe_element.cc
index 608e471..6ecacaf 100644
--- a/third_party/blink/renderer/core/html/html_iframe_element.cc
+++ b/third_party/blink/renderer/core/html/html_iframe_element.cc
@@ -50,7 +50,7 @@
 
 DEFINE_NODE_FACTORY(HTMLIFrameElement)
 
-void HTMLIFrameElement::Trace(blink::Visitor* visitor) {
+void HTMLIFrameElement::Trace(Visitor* visitor) {
   visitor->Trace(sandbox_);
   visitor->Trace(policy_);
   HTMLFrameElementBase::Trace(visitor);
diff --git a/third_party/blink/renderer/core/html/html_iframe_element.h b/third_party/blink/renderer/core/html/html_iframe_element.h
index b4123a9..1246097 100644
--- a/third_party/blink/renderer/core/html/html_iframe_element.h
+++ b/third_party/blink/renderer/core/html/html_iframe_element.h
@@ -42,7 +42,7 @@
 
  public:
   DECLARE_NODE_FACTORY(HTMLIFrameElement);
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
   explicit HTMLIFrameElement(Document&);
   ~HTMLIFrameElement() override;
diff --git a/third_party/blink/renderer/core/html/html_image_element.cc b/third_party/blink/renderer/core/html/html_image_element.cc
index 441bbf1..c7e0781 100644
--- a/third_party/blink/renderer/core/html/html_image_element.cc
+++ b/third_party/blink/renderer/core/html/html_image_element.cc
@@ -86,7 +86,7 @@
       element_->NotifyViewportChanged();
   }
 
-  void Trace(blink::Visitor* visitor) override {
+  void Trace(Visitor* visitor) override {
     visitor->Trace(element_);
     MediaQueryListListener::Trace(visitor);
   }
@@ -128,7 +128,7 @@
 
 HTMLImageElement::~HTMLImageElement() = default;
 
-void HTMLImageElement::Trace(blink::Visitor* visitor) {
+void HTMLImageElement::Trace(Visitor* visitor) {
   visitor->Trace(image_loader_);
   visitor->Trace(listener_);
   visitor->Trace(form_);
diff --git a/third_party/blink/renderer/core/html/html_image_element.h b/third_party/blink/renderer/core/html/html_image_element.h
index 7a12851..d6f338ba 100644
--- a/third_party/blink/renderer/core/html/html_image_element.h
+++ b/third_party/blink/renderer/core/html/html_image_element.h
@@ -72,7 +72,7 @@
 
   explicit HTMLImageElement(Document&, bool created_by_parser = false);
   ~HTMLImageElement() override;
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
   unsigned width();
   unsigned height();
diff --git a/third_party/blink/renderer/core/html/html_link_element.cc b/third_party/blink/renderer/core/html/html_link_element.cc
index b779766..1693c67 100644
--- a/third_party/blink/renderer/core/html/html_link_element.cc
+++ b/third_party/blink/renderer/core/html/html_link_element.cc
@@ -393,7 +393,7 @@
   return sizes_.Get();
 }
 
-void HTMLLinkElement::Trace(blink::Visitor* visitor) {
+void HTMLLinkElement::Trace(Visitor* visitor) {
   visitor->Trace(link_);
   visitor->Trace(sizes_);
   visitor->Trace(link_loader_);
diff --git a/third_party/blink/renderer/core/html/html_link_element.h b/third_party/blink/renderer/core/html/html_link_element.h
index 91fb2c91..af3537f 100644
--- a/third_party/blink/renderer/core/html/html_link_element.h
+++ b/third_party/blink/renderer/core/html/html_link_element.h
@@ -122,7 +122,7 @@
   }
   bool IsCreatedByParser() const { return created_by_parser_; }
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   LinkStyle* GetLinkStyle() const;
diff --git a/third_party/blink/renderer/core/html/html_marquee_element.cc b/third_party/blink/renderer/core/html/html_marquee_element.cc
index 58fd369..4564dc1 100644
--- a/third_party/blink/renderer/core/html/html_marquee_element.cc
+++ b/third_party/blink/renderer/core/html/html_marquee_element.cc
@@ -91,7 +91,7 @@
     marquee_->ContinueAnimation();
   }
 
-  void Trace(blink::Visitor* visitor) override {
+  void Trace(Visitor* visitor) override {
     visitor->Trace(marquee_);
     FrameRequestCallbackCollection::FrameCallback::Trace(visitor);
   }
@@ -111,7 +111,7 @@
     marquee_->start();
   }
 
-  void Trace(blink::Visitor* visitor) override {
+  void Trace(Visitor* visitor) override {
     visitor->Trace(marquee_);
     NativeEventListener::Trace(visitor);
   }
@@ -488,7 +488,7 @@
          String::NumberToStringECMAScript(value) + "px)";
 }
 
-void HTMLMarqueeElement::Trace(blink::Visitor* visitor) {
+void HTMLMarqueeElement::Trace(Visitor* visitor) {
   visitor->Trace(mover_);
   visitor->Trace(player_);
   HTMLElement::Trace(visitor);
diff --git a/third_party/blink/renderer/core/html/html_marquee_element.h b/third_party/blink/renderer/core/html/html_marquee_element.h
index 903870d..d9cb385 100644
--- a/third_party/blink/renderer/core/html/html_marquee_element.h
+++ b/third_party/blink/renderer/core/html/html_marquee_element.h
@@ -33,7 +33,7 @@
   DEFINE_WRAPPERTYPEINFO();
 
  public:
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
   static HTMLMarqueeElement* Create(Document&);
 
diff --git a/third_party/blink/renderer/core/html/html_meter_element.cc b/third_party/blink/renderer/core/html/html_meter_element.cc
index 20bb256..a178db4 100644
--- a/third_party/blink/renderer/core/html/html_meter_element.cc
+++ b/third_party/blink/renderer/core/html/html_meter_element.cc
@@ -223,7 +223,7 @@
   return GetComputedStyle() && !GetComputedStyle()->HasAppearance();
 }
 
-void HTMLMeterElement::Trace(blink::Visitor* visitor) {
+void HTMLMeterElement::Trace(Visitor* visitor) {
   visitor->Trace(value_);
   HTMLElement::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/html_meter_element.h b/third_party/blink/renderer/core/html/html_meter_element.h
index 63ae4b6..fa329c1 100644
--- a/third_party/blink/renderer/core/html/html_meter_element.h
+++ b/third_party/blink/renderer/core/html/html_meter_element.h
@@ -65,7 +65,7 @@
 
   bool CanContainRangeEndPoint() const override;
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   ~HTMLMeterElement() override;
diff --git a/third_party/blink/renderer/core/html/html_object_element.cc b/third_party/blink/renderer/core/html/html_object_element.cc
index 8d13336..09ba3a5 100644
--- a/third_party/blink/renderer/core/html/html_object_element.cc
+++ b/third_party/blink/renderer/core/html/html_object_element.cc
@@ -64,7 +64,7 @@
   return element;
 }
 
-void HTMLObjectElement::Trace(blink::Visitor* visitor) {
+void HTMLObjectElement::Trace(Visitor* visitor) {
   ListedElement::Trace(visitor);
   HTMLPlugInElement::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/html_object_element.h b/third_party/blink/renderer/core/html/html_object_element.h
index 387ddbf..a6da0c8 100644
--- a/third_party/blink/renderer/core/html/html_object_element.h
+++ b/third_party/blink/renderer/core/html/html_object_element.h
@@ -48,7 +48,7 @@
 
   HTMLObjectElement(Document&, const CreateElementFlags);
   ~HTMLObjectElement() override;
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
   // Returns attributes that should be checked against Trusted Types
   const AttrNameToTrustedType& GetCheckedAttributeTypes() const override;
diff --git a/third_party/blink/renderer/core/html/html_plugin_element.cc b/third_party/blink/renderer/core/html/html_plugin_element.cc
index 1247fb1..b2dad9d 100644
--- a/third_party/blink/renderer/core/html/html_plugin_element.cc
+++ b/third_party/blink/renderer/core/html/html_plugin_element.cc
@@ -129,7 +129,7 @@
   DCHECK(!is_delaying_load_event_);
 }
 
-void HTMLPlugInElement::Trace(blink::Visitor* visitor) {
+void HTMLPlugInElement::Trace(Visitor* visitor) {
   visitor->Trace(image_loader_);
   visitor->Trace(persisted_plugin_);
   HTMLFrameOwnerElement::Trace(visitor);
diff --git a/third_party/blink/renderer/core/html/html_plugin_element.h b/third_party/blink/renderer/core/html/html_plugin_element.h
index c18b316..dbd52be 100644
--- a/third_party/blink/renderer/core/html/html_plugin_element.h
+++ b/third_party/blink/renderer/core/html/html_plugin_element.h
@@ -67,7 +67,7 @@
 
  public:
   ~HTMLPlugInElement() override;
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
   bool IsPlugin() const final { return true; }
 
diff --git a/third_party/blink/renderer/core/html/html_progress_element.cc b/third_party/blink/renderer/core/html/html_progress_element.cc
index 9f92455..d774d16 100644
--- a/third_party/blink/renderer/core/html/html_progress_element.cc
+++ b/third_party/blink/renderer/core/html/html_progress_element.cc
@@ -151,7 +151,7 @@
   return !IsDeterminate();
 }
 
-void HTMLProgressElement::Trace(blink::Visitor* visitor) {
+void HTMLProgressElement::Trace(Visitor* visitor) {
   visitor->Trace(value_);
   HTMLElement::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/html_progress_element.h b/third_party/blink/renderer/core/html/html_progress_element.h
index f80f6be..5deaca0 100644
--- a/third_party/blink/renderer/core/html/html_progress_element.h
+++ b/third_party/blink/renderer/core/html/html_progress_element.h
@@ -49,7 +49,7 @@
 
   bool CanContainRangeEndPoint() const override { return false; }
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   ~HTMLProgressElement() override;
diff --git a/third_party/blink/renderer/core/html/html_script_element.cc b/third_party/blink/renderer/core/html/html_script_element.cc
index dbff4b5..2d59a13 100644
--- a/third_party/blink/renderer/core/html/html_script_element.cc
+++ b/third_party/blink/renderer/core/html/html_script_element.cc
@@ -266,7 +266,7 @@
   return factory.CreateElement(TagQName(), flags, IsValue());
 }
 
-void HTMLScriptElement::Trace(blink::Visitor* visitor) {
+void HTMLScriptElement::Trace(Visitor* visitor) {
   visitor->Trace(loader_);
   HTMLElement::Trace(visitor);
   ScriptElementBase::Trace(visitor);
diff --git a/third_party/blink/renderer/core/html/html_script_element.h b/third_party/blink/renderer/core/html/html_script_element.h
index d70d8e9..dacc58b 100644
--- a/third_party/blink/renderer/core/html/html_script_element.h
+++ b/third_party/blink/renderer/core/html/html_script_element.h
@@ -64,7 +64,7 @@
   bool IsScriptElement() const override { return true; }
   Document& GetDocument() const override;
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   void ParseAttribute(const AttributeModificationParams&) override;
diff --git a/third_party/blink/renderer/core/html/html_slot_element.cc b/third_party/blink/renderer/core/html/html_slot_element.cc
index db78772c..17abe79 100644
--- a/third_party/blink/renderer/core/html/html_slot_element.cc
+++ b/third_party/blink/renderer/core/html/html_slot_element.cc
@@ -579,7 +579,7 @@
   return Element::tabIndex();
 }
 
-void HTMLSlotElement::Trace(blink::Visitor* visitor) {
+void HTMLSlotElement::Trace(Visitor* visitor) {
   visitor->Trace(assigned_nodes_);
   visitor->Trace(assigned_nodes_index_);
   visitor->Trace(flat_tree_children_);
diff --git a/third_party/blink/renderer/core/html/html_slot_element.h b/third_party/blink/renderer/core/html/html_slot_element.h
index a4c3727..bec406a 100644
--- a/third_party/blink/renderer/core/html/html_slot_element.h
+++ b/third_party/blink/renderer/core/html/html_slot_element.h
@@ -117,7 +117,7 @@
     return assigned_nodes_candidates_;
   }
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   InsertionNotificationRequest InsertedInto(ContainerNode&) final;
diff --git a/third_party/blink/renderer/core/html/html_source_element.cc b/third_party/blink/renderer/core/html/html_source_element.cc
index 65ddfec..80c993f 100644
--- a/third_party/blink/renderer/core/html/html_source_element.cc
+++ b/third_party/blink/renderer/core/html/html_source_element.cc
@@ -53,7 +53,7 @@
   }
 
   void ClearElement() { element_ = nullptr; }
-  void Trace(blink::Visitor* visitor) override {
+  void Trace(Visitor* visitor) override {
     visitor->Trace(element_);
     MediaQueryListListener::Trace(visitor);
   }
@@ -197,7 +197,7 @@
     picture->SourceOrMediaChanged();
 }
 
-void HTMLSourceElement::Trace(blink::Visitor* visitor) {
+void HTMLSourceElement::Trace(Visitor* visitor) {
   visitor->Trace(media_query_list_);
   visitor->Trace(listener_);
   HTMLElement::Trace(visitor);
diff --git a/third_party/blink/renderer/core/html/html_source_element.h b/third_party/blink/renderer/core/html/html_source_element.h
index 35163c6..369454d 100644
--- a/third_party/blink/renderer/core/html/html_source_element.h
+++ b/third_party/blink/renderer/core/html/html_source_element.h
@@ -62,7 +62,7 @@
   void RemoveMediaQueryListListener();
   void AddMediaQueryListListener();
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   void DispatchPendingEvent();
diff --git a/third_party/blink/renderer/core/html/html_style_element.cc b/third_party/blink/renderer/core/html/html_style_element.cc
index b55f680..1a3c59a 100644
--- a/third_party/blink/renderer/core/html/html_style_element.cc
+++ b/third_party/blink/renderer/core/html/html_style_element.cc
@@ -151,7 +151,7 @@
     style_sheet->setDisabled(set_disabled);
 }
 
-void HTMLStyleElement::Trace(blink::Visitor* visitor) {
+void HTMLStyleElement::Trace(Visitor* visitor) {
   StyleElement::Trace(visitor);
   HTMLElement::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/html_style_element.h b/third_party/blink/renderer/core/html/html_style_element.h
index 0bb5327..c1274be 100644
--- a/third_party/blink/renderer/core/html/html_style_element.h
+++ b/third_party/blink/renderer/core/html/html_style_element.h
@@ -46,7 +46,7 @@
   bool disabled() const;
   void setDisabled(bool);
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   // Always call this asynchronously because this can cause synchronous
diff --git a/third_party/blink/renderer/core/html/html_table_element.cc b/third_party/blink/renderer/core/html/html_table_element.cc
index 09fcb4d..9bad9c4a 100644
--- a/third_party/blink/renderer/core/html/html_table_element.cc
+++ b/third_party/blink/renderer/core/html/html_table_element.cc
@@ -620,7 +620,7 @@
   return getAttribute(kSummaryAttr);
 }
 
-void HTMLTableElement::Trace(blink::Visitor* visitor) {
+void HTMLTableElement::Trace(Visitor* visitor) {
   visitor->Trace(shared_cell_style_);
   HTMLElement::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/html_table_element.h b/third_party/blink/renderer/core/html/html_table_element.h
index 30698e8..a8a7183 100644
--- a/third_party/blink/renderer/core/html/html_table_element.h
+++ b/third_party/blink/renderer/core/html/html_table_element.h
@@ -75,7 +75,7 @@
 
   bool HasNonInBodyInsertionMode() const override { return true; }
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   ~HTMLTableElement() override;
diff --git a/third_party/blink/renderer/core/html/html_template_element.cc b/third_party/blink/renderer/core/html/html_template_element.cc
index 1db0696..f8fd142 100644
--- a/third_party/blink/renderer/core/html/html_template_element.cc
+++ b/third_party/blink/renderer/core/html/html_template_element.cc
@@ -71,7 +71,7 @@
   GetDocument().EnsureTemplateDocument().AdoptIfNeeded(*content_);
 }
 
-void HTMLTemplateElement::Trace(blink::Visitor* visitor) {
+void HTMLTemplateElement::Trace(Visitor* visitor) {
   visitor->Trace(content_);
   HTMLElement::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/html_template_element.h b/third_party/blink/renderer/core/html/html_template_element.h
index dcf9f93..fe9c1d8 100644
--- a/third_party/blink/renderer/core/html/html_template_element.h
+++ b/third_party/blink/renderer/core/html/html_template_element.h
@@ -50,7 +50,7 @@
 
   bool HasNonInBodyInsertionMode() const override { return true; }
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
   DocumentFragment* content() const;
 
diff --git a/third_party/blink/renderer/core/html/html_view_source_document.cc b/third_party/blink/renderer/core/html/html_view_source_document.cc
index fa0c0f9..4dd94e5 100644
--- a/third_party/blink/renderer/core/html/html_view_source_document.cc
+++ b/third_party/blink/renderer/core/html/html_view_source_document.cc
@@ -354,7 +354,7 @@
   }
 }
 
-void HTMLViewSourceDocument::Trace(blink::Visitor* visitor) {
+void HTMLViewSourceDocument::Trace(Visitor* visitor) {
   visitor->Trace(current_);
   visitor->Trace(tbody_);
   visitor->Trace(td_);
diff --git a/third_party/blink/renderer/core/html/html_view_source_document.h b/third_party/blink/renderer/core/html/html_view_source_document.h
index 10644df..52a4287 100644
--- a/third_party/blink/renderer/core/html/html_view_source_document.h
+++ b/third_party/blink/renderer/core/html/html_view_source_document.h
@@ -47,7 +47,7 @@
 
   void AddSource(const String&, HTMLToken&, SourceAnnotation);
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   DocumentParser* CreateParser() override;
diff --git a/third_party/blink/renderer/core/html/image_document.cc b/third_party/blink/renderer/core/html/image_document.cc
index 47f8e6b..c452726 100644
--- a/third_party/blink/renderer/core/html/image_document.cc
+++ b/third_party/blink/renderer/core/html/image_document.cc
@@ -73,7 +73,7 @@
 
   void Invoke(ExecutionContext*, Event*) override;
 
-  void Trace(blink::Visitor* visitor) override {
+  void Trace(Visitor* visitor) override {
     visitor->Trace(doc_);
     NativeEventListener::Trace(visitor);
   }
@@ -563,7 +563,7 @@
   return GetFrame()->IsMainFrame() && !is_wrap_content_web_view;
 }
 
-void ImageDocument::Trace(blink::Visitor* visitor) {
+void ImageDocument::Trace(Visitor* visitor) {
   visitor->Trace(div_element_);
   visitor->Trace(image_element_);
   HTMLDocument::Trace(visitor);
diff --git a/third_party/blink/renderer/core/html/image_document.h b/third_party/blink/renderer/core/html/image_document.h
index e8cf65d..381272aa 100644
--- a/third_party/blink/renderer/core/html/image_document.h
+++ b/third_party/blink/renderer/core/html/image_document.h
@@ -57,7 +57,7 @@
   void UpdateImageStyle();
   bool ShouldShrinkToFit() const;
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   DocumentParser* CreateParser() override;
diff --git a/third_party/blink/renderer/core/html/imports/html_import.h b/third_party/blink/renderer/core/html/imports/html_import.h
index 3e1b249..e112e64 100644
--- a/third_party/blink/renderer/core/html/imports/html_import.h
+++ b/third_party/blink/renderer/core/html/imports/html_import.h
@@ -66,7 +66,7 @@
   virtual void StateWillChange() {}
   virtual void StateDidChange();
 
-  virtual void Trace(blink::Visitor* visitor) {}
+  virtual void Trace(Visitor* visitor) {}
 
  protected:
   // Stating from most conservative state.
diff --git a/third_party/blink/renderer/core/html/imports/html_import_child.cc b/third_party/blink/renderer/core/html/imports/html_import_child.cc
index 6cb6d56..7ebf653 100644
--- a/third_party/blink/renderer/core/html/imports/html_import_child.cc
+++ b/third_party/blink/renderer/core/html/imports/html_import_child.cc
@@ -174,7 +174,7 @@
   }
 }
 
-void HTMLImportChild::Trace(blink::Visitor* visitor) {
+void HTMLImportChild::Trace(Visitor* visitor) {
   visitor->Trace(custom_element_microtask_step_);
   visitor->Trace(loader_);
   visitor->Trace(client_);
diff --git a/third_party/blink/renderer/core/html/imports/html_import_child.h b/third_party/blink/renderer/core/html/imports/html_import_child.h
index d0db86e..e8265e3 100644
--- a/third_party/blink/renderer/core/html/imports/html_import_child.h
+++ b/third_party/blink/renderer/core/html/imports/html_import_child.h
@@ -70,7 +70,7 @@
   HTMLImportLoader* Loader() const final;
   void StateWillChange() final;
   void StateDidChange() final;
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
   void DidFinishLoading();
   void DidFinishUpgradingCustomElements();
diff --git a/third_party/blink/renderer/core/html/imports/html_import_child_client.h b/third_party/blink/renderer/core/html/imports/html_import_child_client.h
index 2f09958..04525f82 100644
--- a/third_party/blink/renderer/core/html/imports/html_import_child_client.h
+++ b/third_party/blink/renderer/core/html/imports/html_import_child_client.h
@@ -45,7 +45,7 @@
   virtual void ImportChildWasDisposed(HTMLImportChild*) = 0;
   virtual bool IsSync() const = 0;
   virtual HTMLLinkElement* Link() = 0;
-  void Trace(blink::Visitor* visitor) override {}
+  void Trace(Visitor* visitor) override {}
 };
 
 }  // namespace blink
diff --git a/third_party/blink/renderer/core/html/imports/html_import_loader.cc b/third_party/blink/renderer/core/html/imports/html_import_loader.cc
index 325b9a9..a482044 100644
--- a/third_party/blink/renderer/core/html/imports/html_import_loader.cc
+++ b/third_party/blink/renderer/core/html/imports/html_import_loader.cc
@@ -201,7 +201,7 @@
   return microtask_queue_;
 }
 
-void HTMLImportLoader::Trace(blink::Visitor* visitor) {
+void HTMLImportLoader::Trace(Visitor* visitor) {
   visitor->Trace(controller_);
   visitor->Trace(imports_);
   visitor->Trace(document_);
diff --git a/third_party/blink/renderer/core/html/imports/html_import_loader.h b/third_party/blink/renderer/core/html/imports/html_import_loader.h
index f87ea50..a3494cf 100644
--- a/third_party/blink/renderer/core/html/imports/html_import_loader.h
+++ b/third_party/blink/renderer/core/html/imports/html_import_loader.h
@@ -93,7 +93,7 @@
 
   V0CustomElementSyncMicrotaskQueue* MicrotaskQueue() const;
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   // RawResourceClient overrides:
diff --git a/third_party/blink/renderer/core/html/imports/html_import_tree_root.cc b/third_party/blink/renderer/core/html/imports/html_import_tree_root.cc
index 9c10e03..9e37a0c 100644
--- a/third_party/blink/renderer/core/html/imports/html_import_tree_root.cc
+++ b/third_party/blink/renderer/core/html/imports/html_import_tree_root.cc
@@ -81,7 +81,7 @@
   HTMLImport::RecalcTreeState(this);
 }
 
-void HTMLImportTreeRoot::Trace(blink::Visitor* visitor) {
+void HTMLImportTreeRoot::Trace(Visitor* visitor) {
   visitor->Trace(document_);
   visitor->Trace(imports_);
   HTMLImport::Trace(visitor);
diff --git a/third_party/blink/renderer/core/html/imports/html_import_tree_root.h b/third_party/blink/renderer/core/html/imports/html_import_tree_root.h
index 0baace6..cfe93b7 100644
--- a/third_party/blink/renderer/core/html/imports/html_import_tree_root.h
+++ b/third_party/blink/renderer/core/html/imports/html_import_tree_root.h
@@ -35,7 +35,7 @@
   HTMLImportChild* Add(HTMLImportChild*);
   HTMLImportChild* Find(const KURL&) const;
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
   const char* NameInHeapSnapshot() const override {
     return "HTMLImportTreeRoot";
   }
diff --git a/third_party/blink/renderer/core/html/imports/html_imports_controller.cc b/third_party/blink/renderer/core/html/imports/html_imports_controller.cc
index 96f17c3..99de8f1 100644
--- a/third_party/blink/renderer/core/html/imports/html_imports_controller.cc
+++ b/third_party/blink/renderer/core/html/imports/html_imports_controller.cc
@@ -148,7 +148,7 @@
   return nullptr;
 }
 
-void HTMLImportsController::Trace(blink::Visitor* visitor) {
+void HTMLImportsController::Trace(Visitor* visitor) {
   visitor->Trace(root_);
   visitor->Trace(loaders_);
 }
diff --git a/third_party/blink/renderer/core/html/imports/html_imports_controller.h b/third_party/blink/renderer/core/html/imports/html_imports_controller.h
index 74df532..9c5b97c 100644
--- a/third_party/blink/renderer/core/html/imports/html_imports_controller.h
+++ b/third_party/blink/renderer/core/html/imports/html_imports_controller.h
@@ -70,7 +70,7 @@
   HTMLImportLoader* LoaderAt(wtf_size_t i) const { return loaders_[i]; }
   HTMLImportLoader* LoaderFor(const Document&) const;
 
-  void Trace(blink::Visitor*);
+  void Trace(Visitor*);
 
   void Dispose();
 
diff --git a/third_party/blink/renderer/core/html/imports/link_import.cc b/third_party/blink/renderer/core/html/imports/link_import.cc
index 47e5978..e0b4360 100644
--- a/third_party/blink/renderer/core/html/imports/link_import.cc
+++ b/third_party/blink/renderer/core/html/imports/link_import.cc
@@ -132,7 +132,7 @@
     GetDocument().GetStyleEngine().HtmlImportAddedOrRemoved();
 }
 
-void LinkImport::Trace(blink::Visitor* visitor) {
+void LinkImport::Trace(Visitor* visitor) {
   visitor->Trace(child_);
   HTMLImportChildClient::Trace(visitor);
   LinkResource::Trace(visitor);
diff --git a/third_party/blink/renderer/core/html/imports/link_import.h b/third_party/blink/renderer/core/html/imports/link_import.h
index 28bc567..4740f6c 100644
--- a/third_party/blink/renderer/core/html/imports/link_import.h
+++ b/third_party/blink/renderer/core/html/imports/link_import.h
@@ -57,7 +57,7 @@
   void Process() final;
   LinkResourceType GetType() const final { return kImport; }
   bool HasLoaded() const final;
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
   void OwnerInserted() final;
   void OwnerRemoved() final;
 
diff --git a/third_party/blink/renderer/core/html/lazy_load_frame_observer.cc b/third_party/blink/renderer/core/html/lazy_load_frame_observer.cc
index 225b335..40d89cf 100644
--- a/third_party/blink/renderer/core/html/lazy_load_frame_observer.cc
+++ b/third_party/blink/renderer/core/html/lazy_load_frame_observer.cc
@@ -392,7 +392,7 @@
     was_recorded_as_deferred_ = true;
 }
 
-void LazyLoadFrameObserver::Trace(blink::Visitor* visitor) {
+void LazyLoadFrameObserver::Trace(Visitor* visitor) {
   visitor->Trace(element_);
   visitor->Trace(lazy_load_intersection_observer_);
   visitor->Trace(visibility_metrics_observer_);
diff --git a/third_party/blink/renderer/core/html/lazy_load_frame_observer.h b/third_party/blink/renderer/core/html/lazy_load_frame_observer.h
index 5864e31..5aef996 100644
--- a/third_party/blink/renderer/core/html/lazy_load_frame_observer.h
+++ b/third_party/blink/renderer/core/html/lazy_load_frame_observer.h
@@ -54,7 +54,7 @@
 
   void LoadImmediately();
 
-  void Trace(blink::Visitor*);
+  void Trace(Visitor*);
 
  private:
   struct LazyLoadRequestInfo;
diff --git a/third_party/blink/renderer/core/html/link_resource.cc b/third_party/blink/renderer/core/html/link_resource.cc
index 35e7b21..468226f 100644
--- a/third_party/blink/renderer/core/html/link_resource.cc
+++ b/third_party/blink/renderer/core/html/link_resource.cc
@@ -65,7 +65,7 @@
   return WTF::TextEncoding(charset);
 }
 
-void LinkResource::Trace(blink::Visitor* visitor) {
+void LinkResource::Trace(Visitor* visitor) {
   visitor->Trace(owner_);
 }
 
diff --git a/third_party/blink/renderer/core/html/link_resource.h b/third_party/blink/renderer/core/html/link_resource.h
index e2defa7..d98f8b6 100644
--- a/third_party/blink/renderer/core/html/link_resource.h
+++ b/third_party/blink/renderer/core/html/link_resource.h
@@ -60,7 +60,7 @@
   virtual void OwnerInserted() {}
   virtual bool HasLoaded() const = 0;
 
-  virtual void Trace(blink::Visitor*);
+  virtual void Trace(Visitor*);
 
  protected:
   void Load();
diff --git a/third_party/blink/renderer/core/html/link_style.cc b/third_party/blink/renderer/core/html/link_style.cc
index 1fd0665..4998764 100644
--- a/third_party/blink/renderer/core/html/link_style.cc
+++ b/third_party/blink/renderer/core/html/link_style.cc
@@ -363,7 +363,7 @@
     ClearSheet();
 }
 
-void LinkStyle::Trace(blink::Visitor* visitor) {
+void LinkStyle::Trace(Visitor* visitor) {
   visitor->Trace(sheet_);
   LinkResource::Trace(visitor);
   ResourceClient::Trace(visitor);
diff --git a/third_party/blink/renderer/core/html/link_style.h b/third_party/blink/renderer/core/html/link_style.h
index c3b802c..22e838c 100644
--- a/third_party/blink/renderer/core/html/link_style.h
+++ b/third_party/blink/renderer/core/html/link_style.h
@@ -38,7 +38,7 @@
   void Process() override;
   void OwnerRemoved() override;
   bool HasLoaded() const override { return loaded_sheet_; }
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
   void StartLoadingDynamicSheet();
   void NotifyLoadedSheetAndAllCriticalSubresources(
diff --git a/third_party/blink/renderer/core/html/media/autoplay_policy.cc b/third_party/blink/renderer/core/html/media/autoplay_policy.cc
index 518d1cb..5778a5a9 100644
--- a/third_party/blink/renderer/core/html/media/autoplay_policy.cc
+++ b/third_party/blink/renderer/core/html/media/autoplay_policy.cc
@@ -476,7 +476,7 @@
   return element_->can_autoplay_ && element_->paused_ && element_->Autoplay();
 }
 
-void AutoplayPolicy::Trace(blink::Visitor* visitor) {
+void AutoplayPolicy::Trace(Visitor* visitor) {
   visitor->Trace(element_);
   visitor->Trace(autoplay_visibility_observer_);
   visitor->Trace(autoplay_uma_helper_);
diff --git a/third_party/blink/renderer/core/html/media/autoplay_policy.h b/third_party/blink/renderer/core/html/media/autoplay_policy.h
index 18fbfcb..31f7a42e 100644
--- a/third_party/blink/renderer/core/html/media/autoplay_policy.h
+++ b/third_party/blink/renderer/core/html/media/autoplay_policy.h
@@ -113,7 +113,7 @@
   // avoid false positives.
   void EnsureAutoplayInitiatedSet();
 
-  virtual void Trace(blink::Visitor*);
+  virtual void Trace(Visitor*);
 
  private:
   friend class AutoplayUmaHelper;
diff --git a/third_party/blink/renderer/core/html/media/autoplay_uma_helper.cc b/third_party/blink/renderer/core/html/media/autoplay_uma_helper.cc
index 233d72b..fe50d22 100644
--- a/third_party/blink/renderer/core/html/media/autoplay_uma_helper.cc
+++ b/third_party/blink/renderer/core/html/media/autoplay_uma_helper.cc
@@ -475,7 +475,7 @@
              CrossOriginAutoplayResult::kUserPaused);
 }
 
-void AutoplayUmaHelper::Trace(blink::Visitor* visitor) {
+void AutoplayUmaHelper::Trace(Visitor* visitor) {
   NativeEventListener::Trace(visitor);
   ContextLifecycleObserver::Trace(visitor);
   visitor->Trace(element_);
diff --git a/third_party/blink/renderer/core/html/media/autoplay_uma_helper.h b/third_party/blink/renderer/core/html/media/autoplay_uma_helper.h
index 37e4a3c7..5135f0f 100644
--- a/third_party/blink/renderer/core/html/media/autoplay_uma_helper.h
+++ b/third_party/blink/renderer/core/html/media/autoplay_uma_helper.h
@@ -85,7 +85,7 @@
 
   void Invoke(ExecutionContext*, Event*) override;
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   friend class MockAutoplayUmaHelper;
diff --git a/third_party/blink/renderer/core/html/media/html_media_element.cc b/third_party/blink/renderer/core/html/media/html_media_element.cc
index cf4fb69..b5a8507 100644
--- a/third_party/blink/renderer/core/html/media/html_media_element.cc
+++ b/third_party/blink/renderer/core/html/media/html_media_element.cc
@@ -3981,7 +3981,7 @@
   return FastHasAttribute(kControlsAttr);
 }
 
-void HTMLMediaElement::Trace(blink::Visitor* visitor) {
+void HTMLMediaElement::Trace(Visitor* visitor) {
   visitor->Trace(viewport_intersection_observer_);
   visitor->Trace(played_time_ranges_);
   visitor->Trace(async_event_queue_);
@@ -4222,11 +4222,11 @@
     client_->SetFormat(number_of_channels, sample_rate);
 }
 
-void HTMLMediaElement::AudioClientImpl::Trace(blink::Visitor* visitor) {
+void HTMLMediaElement::AudioClientImpl::Trace(Visitor* visitor) {
   visitor->Trace(client_);
 }
 
-void HTMLMediaElement::AudioSourceProviderImpl::Trace(blink::Visitor* visitor) {
+void HTMLMediaElement::AudioSourceProviderImpl::Trace(Visitor* visitor) {
   visitor->Trace(client_);
 }
 
diff --git a/third_party/blink/renderer/core/html/media/html_media_element.h b/third_party/blink/renderer/core/html/media/html_media_element.h
index 7f0f0f9..6a182ed 100644
--- a/third_party/blink/renderer/core/html/media/html_media_element.h
+++ b/third_party/blink/renderer/core/html/media/html_media_element.h
@@ -111,7 +111,7 @@
   // for the given document.
   static void OnMediaControlsEnabledChange(Document*);
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
   void ClearWeakMembers(Visitor*);
   WebMediaPlayer* GetWebMediaPlayer() const { return web_media_player_.get(); }
@@ -708,7 +708,7 @@
     // WebAudioSourceProviderClient
     void SetFormat(uint32_t number_of_channels, float sample_rate) override;
 
-    void Trace(blink::Visitor*);
+    void Trace(Visitor*);
 
    private:
     Member<AudioSourceProviderClient> client_;
@@ -731,7 +731,7 @@
     void SetClient(AudioSourceProviderClient*) override;
     void ProvideInput(AudioBus*, uint32_t frames_to_process) override;
 
-    void Trace(blink::Visitor*);
+    void Trace(Visitor*);
 
    private:
     WebAudioSourceProvider* web_audio_source_provider_;
diff --git a/third_party/blink/renderer/core/html/media/html_video_element.cc b/third_party/blink/renderer/core/html/media/html_video_element.cc
index c9a154c..42975d2 100644
--- a/third_party/blink/renderer/core/html/media/html_video_element.cc
+++ b/third_party/blink/renderer/core/html/media/html_video_element.cc
@@ -107,7 +107,7 @@
   return video;
 }
 
-void HTMLVideoElement::Trace(blink::Visitor* visitor) {
+void HTMLVideoElement::Trace(Visitor* visitor) {
   visitor->Trace(image_loader_);
   visitor->Trace(custom_controls_fullscreen_detector_);
   visitor->Trace(wake_lock_);
diff --git a/third_party/blink/renderer/core/html/media/html_video_element.h b/third_party/blink/renderer/core/html/media/html_video_element.h
index a29b912..9e6a0a1 100644
--- a/third_party/blink/renderer/core/html/media/html_video_element.h
+++ b/third_party/blink/renderer/core/html/media/html_video_element.h
@@ -56,7 +56,7 @@
   static HTMLVideoElement* Create(Document&);
 
   HTMLVideoElement(Document&);
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
   bool HasPendingActivity() const final;
 
diff --git a/third_party/blink/renderer/core/html/media/media_controls.cc b/third_party/blink/renderer/core/html/media/media_controls.cc
index d24af6e..4f735e0d 100644
--- a/third_party/blink/renderer/core/html/media/media_controls.cc
+++ b/third_party/blink/renderer/core/html/media/media_controls.cc
@@ -48,7 +48,7 @@
   return *media_element_;
 }
 
-void MediaControls::Trace(blink::Visitor* visitor) {
+void MediaControls::Trace(Visitor* visitor) {
   visitor->Trace(media_element_);
 }
 
diff --git a/third_party/blink/renderer/core/html/media/media_controls.h b/third_party/blink/renderer/core/html/media/media_controls.h
index 69846ff..57c9b42 100644
--- a/third_party/blink/renderer/core/html/media/media_controls.h
+++ b/third_party/blink/renderer/core/html/media/media_controls.h
@@ -77,7 +77,7 @@
   virtual HTMLDivElement* PanelElement() = 0;
   virtual void OnMediaControlsEnabledChange() = 0;
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   Member<HTMLMediaElement> media_element_;
diff --git a/third_party/blink/renderer/core/html/media/media_custom_controls_fullscreen_detector.cc b/third_party/blink/renderer/core/html/media/media_custom_controls_fullscreen_detector.cc
index fc8cc58..03efdfa 100644
--- a/third_party/blink/renderer/core/html/media/media_custom_controls_fullscreen_detector.cc
+++ b/third_party/blink/renderer/core/html/media/media_custom_controls_fullscreen_detector.cc
@@ -195,7 +195,7 @@
   return fullscreen_element->contains(&VideoElement());
 }
 
-void MediaCustomControlsFullscreenDetector::Trace(blink::Visitor* visitor) {
+void MediaCustomControlsFullscreenDetector::Trace(Visitor* visitor) {
   NativeEventListener::Trace(visitor);
   visitor->Trace(video_element_);
   visitor->Trace(viewport_intersection_observer_);
diff --git a/third_party/blink/renderer/core/html/media/media_custom_controls_fullscreen_detector.h b/third_party/blink/renderer/core/html/media/media_custom_controls_fullscreen_detector.h
index 5d25654..a03841b 100644
--- a/third_party/blink/renderer/core/html/media/media_custom_controls_fullscreen_detector.h
+++ b/third_party/blink/renderer/core/html/media/media_custom_controls_fullscreen_detector.h
@@ -28,7 +28,7 @@
   // EventListener implementation.
   void Invoke(ExecutionContext*, Event*) override;
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   friend class MediaCustomControlsFullscreenDetectorTest;
diff --git a/third_party/blink/renderer/core/html/media/media_remoting_interstitial.cc b/third_party/blink/renderer/core/html/media/media_remoting_interstitial.cc
index 9b4c467..c704d86 100644
--- a/third_party/blink/renderer/core/html/media/media_remoting_interstitial.cc
+++ b/third_party/blink/renderer/core/html/media/media_remoting_interstitial.cc
@@ -144,7 +144,7 @@
       GetVideoElement().getAttribute(html_names::kPosterAttr));
 }
 
-void MediaRemotingInterstitial::Trace(blink::Visitor* visitor) {
+void MediaRemotingInterstitial::Trace(Visitor* visitor) {
   visitor->Trace(video_element_);
   visitor->Trace(background_image_);
   visitor->Trace(cast_icon_);
diff --git a/third_party/blink/renderer/core/html/media/media_remoting_interstitial.h b/third_party/blink/renderer/core/html/media/media_remoting_interstitial.h
index 3a2e574..6f0e77fa 100644
--- a/third_party/blink/renderer/core/html/media/media_remoting_interstitial.h
+++ b/third_party/blink/renderer/core/html/media/media_remoting_interstitial.h
@@ -48,7 +48,7 @@
 
   HTMLVideoElement& GetVideoElement() const { return *video_element_; }
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   // Node override.
diff --git a/third_party/blink/renderer/core/html/media/picture_in_picture_interstitial.cc b/third_party/blink/renderer/core/html/media/picture_in_picture_interstitial.cc
index a6d4939..1440cd7 100644
--- a/third_party/blink/renderer/core/html/media/picture_in_picture_interstitial.cc
+++ b/third_party/blink/renderer/core/html/media/picture_in_picture_interstitial.cc
@@ -45,7 +45,7 @@
     interstitial_->NotifyElementSizeChanged(*entries[0]->contentRect());
   }
 
-  void Trace(blink::Visitor* visitor) override {
+  void Trace(Visitor* visitor) override {
     visitor->Trace(interstitial_);
     ResizeObserver::Delegate::Trace(visitor);
   }
@@ -160,7 +160,7 @@
       GetVideoElement().getAttribute(html_names::kPosterAttr));
 }
 
-void PictureInPictureInterstitial::Trace(blink::Visitor* visitor) {
+void PictureInPictureInterstitial::Trace(Visitor* visitor) {
   visitor->Trace(resize_observer_);
   visitor->Trace(video_element_);
   visitor->Trace(background_image_);
diff --git a/third_party/blink/renderer/core/html/media/picture_in_picture_interstitial.h b/third_party/blink/renderer/core/html/media/picture_in_picture_interstitial.h
index 5cddd5d..deaaff75 100644
--- a/third_party/blink/renderer/core/html/media/picture_in_picture_interstitial.h
+++ b/third_party/blink/renderer/core/html/media/picture_in_picture_interstitial.h
@@ -40,7 +40,7 @@
   void RemovedFrom(ContainerNode&) override;
 
   // Element:
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   class VideoElementResizeObserverDelegate;
diff --git a/third_party/blink/renderer/core/html/media/remote_playback_controller.cc b/third_party/blink/renderer/core/html/media/remote_playback_controller.cc
index 9992078..71f3d3c 100644
--- a/third_party/blink/renderer/core/html/media/remote_playback_controller.cc
+++ b/third_party/blink/renderer/core/html/media/remote_playback_controller.cc
@@ -16,7 +16,7 @@
   return Supplement<HTMLMediaElement>::From<RemotePlaybackController>(element);
 }
 
-void RemotePlaybackController::Trace(blink::Visitor* visitor) {
+void RemotePlaybackController::Trace(Visitor* visitor) {
   Supplement<HTMLMediaElement>::Trace(visitor);
 }
 
diff --git a/third_party/blink/renderer/core/html/media/remote_playback_controller.h b/third_party/blink/renderer/core/html/media/remote_playback_controller.h
index 5741823..88a9dc3 100644
--- a/third_party/blink/renderer/core/html/media/remote_playback_controller.h
+++ b/third_party/blink/renderer/core/html/media/remote_playback_controller.h
@@ -26,7 +26,7 @@
   virtual void AddObserver(RemotePlaybackObserver*) = 0;
   virtual void RemoveObserver(RemotePlaybackObserver*) = 0;
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  protected:
   explicit RemotePlaybackController(HTMLMediaElement&);
diff --git a/third_party/blink/renderer/core/html/media/video_wake_lock.cc b/third_party/blink/renderer/core/html/media/video_wake_lock.cc
index 2c45f7d..d5dfeb9 100644
--- a/third_party/blink/renderer/core/html/media/video_wake_lock.cc
+++ b/third_party/blink/renderer/core/html/media/video_wake_lock.cc
@@ -36,7 +36,7 @@
   Update();
 }
 
-void VideoWakeLock::Trace(blink::Visitor* visitor) {
+void VideoWakeLock::Trace(Visitor* visitor) {
   NativeEventListener::Trace(visitor);
   PageVisibilityObserver::Trace(visitor);
   visitor->Trace(video_element_);
diff --git a/third_party/blink/renderer/core/html/media/video_wake_lock.h b/third_party/blink/renderer/core/html/media/video_wake_lock.h
index e71e8e8..f3ede1b 100644
--- a/third_party/blink/renderer/core/html/media/video_wake_lock.h
+++ b/third_party/blink/renderer/core/html/media/video_wake_lock.h
@@ -33,7 +33,7 @@
  public:
   explicit VideoWakeLock(HTMLVideoElement&);
 
-  void Trace(blink::Visitor*) final;
+  void Trace(Visitor*) final;
 
   // EventListener implementation.
   void Invoke(ExecutionContext*, Event*) final;
diff --git a/third_party/blink/renderer/core/html/parser/html_construction_site.cc b/third_party/blink/renderer/core/html/parser/html_construction_site.cc
index 65faae0..d7f729c 100644
--- a/third_party/blink/renderer/core/html/parser/html_construction_site.cc
+++ b/third_party/blink/renderer/core/html/parser/html_construction_site.cc
@@ -385,7 +385,7 @@
   DCHECK(pending_text_.IsEmpty());
 }
 
-void HTMLConstructionSite::Trace(blink::Visitor* visitor) {
+void HTMLConstructionSite::Trace(Visitor* visitor) {
   visitor->Trace(document_);
   visitor->Trace(attachment_root_);
   visitor->Trace(head_);
@@ -1106,7 +1106,7 @@
   QueueTask(task);
 }
 
-void HTMLConstructionSite::PendingText::Trace(blink::Visitor* visitor) {
+void HTMLConstructionSite::PendingText::Trace(Visitor* visitor) {
   visitor->Trace(parent);
   visitor->Trace(next_child);
 }
diff --git a/third_party/blink/renderer/core/html/parser/html_construction_site.h b/third_party/blink/renderer/core/html/parser/html_construction_site.h
index b0d8394..05dfa7b 100644
--- a/third_party/blink/renderer/core/html/parser/html_construction_site.h
+++ b/third_party/blink/renderer/core/html/parser/html_construction_site.h
@@ -53,7 +53,7 @@
   explicit HTMLConstructionSiteTask(Operation op)
       : operation(op), self_closing(false) {}
 
-  void Trace(blink::Visitor* visitor) {
+  void Trace(Visitor* visitor) {
     visitor->Trace(parent);
     visitor->Trace(next_child);
     visitor->Trace(child);
@@ -111,7 +111,7 @@
                        Document&,
                        ParserContentPolicy);
   ~HTMLConstructionSite();
-  void Trace(blink::Visitor*);
+  void Trace(Visitor*);
 
   void InitFragmentParsing(DocumentFragment*, Element* context_element);
 
@@ -324,7 +324,7 @@
       return string_builder.IsEmpty();
     }
 
-    void Trace(blink::Visitor*);
+    void Trace(Visitor*);
 
     Member<ContainerNode> parent;
     Member<Node> next_child;
diff --git a/third_party/blink/renderer/core/html/parser/html_document_parser.cc b/third_party/blink/renderer/core/html/parser/html_document_parser.cc
index 96e4514..10d1a09 100644
--- a/third_party/blink/renderer/core/html/parser/html_document_parser.cc
+++ b/third_party/blink/renderer/core/html/parser/html_document_parser.cc
@@ -167,7 +167,7 @@
     StopBackgroundParser();
 }
 
-void HTMLDocumentParser::Trace(blink::Visitor* visitor) {
+void HTMLDocumentParser::Trace(Visitor* visitor) {
   visitor->Trace(tree_builder_);
   visitor->Trace(parser_scheduler_);
   visitor->Trace(xss_auditor_delegate_);
diff --git a/third_party/blink/renderer/core/html/parser/html_document_parser.h b/third_party/blink/renderer/core/html/parser/html_document_parser.h
index 4ed141f..6ee149a 100644
--- a/third_party/blink/renderer/core/html/parser/html_document_parser.h
+++ b/third_party/blink/renderer/core/html/parser/html_document_parser.h
@@ -84,7 +84,7 @@
                      Element* context_element,
                      ParserContentPolicy);
   ~HTMLDocumentParser() override;
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
   // TODO(alexclarke): Remove when background parser goes away.
   void Dispose();
diff --git a/third_party/blink/renderer/core/html/parser/html_element_stack.cc b/third_party/blink/renderer/core/html/parser/html_element_stack.cc
index 4e98af7..87d6b26 100644
--- a/third_party/blink/renderer/core/html/parser/html_element_stack.cc
+++ b/third_party/blink/renderer/core/html/parser/html_element_stack.cc
@@ -118,7 +118,7 @@
   return false;
 }
 
-void HTMLElementStack::ElementRecord::Trace(blink::Visitor* visitor) {
+void HTMLElementStack::ElementRecord::Trace(Visitor* visitor) {
   visitor->Trace(item_);
   visitor->Trace(next_);
 }
@@ -536,7 +536,7 @@
   return nullptr;
 }
 
-void HTMLElementStack::Trace(blink::Visitor* visitor) {
+void HTMLElementStack::Trace(Visitor* visitor) {
   visitor->Trace(top_);
   visitor->Trace(root_node_);
   visitor->Trace(head_element_);
diff --git a/third_party/blink/renderer/core/html/parser/html_element_stack.h b/third_party/blink/renderer/core/html/parser/html_element_stack.h
index cdcfeea0..b34290c 100644
--- a/third_party/blink/renderer/core/html/parser/html_element_stack.h
+++ b/third_party/blink/renderer/core/html/parser/html_element_stack.h
@@ -61,7 +61,7 @@
 
     ElementRecord* Next() const { return next_.Get(); }
 
-    void Trace(blink::Visitor*);
+    void Trace(Visitor*);
 
    private:
     friend class HTMLElementStack;
@@ -165,7 +165,7 @@
 
   ContainerNode* RootNode() const;
 
-  void Trace(blink::Visitor*);
+  void Trace(Visitor*);
 
 #ifndef NDEBUG
   void Show();
diff --git a/third_party/blink/renderer/core/html/parser/html_formatting_element_list.h b/third_party/blink/renderer/core/html/parser/html_formatting_element_list.h
index fe0a6e3..168b2cf 100644
--- a/third_party/blink/renderer/core/html/parser/html_formatting_element_list.h
+++ b/third_party/blink/renderer/core/html/parser/html_formatting_element_list.h
@@ -76,7 +76,7 @@
       return !item_ ? !!element : item_->GetElement() != element;
     }
 
-    void Trace(blink::Visitor* visitor) { visitor->Trace(item_); }
+    void Trace(Visitor* visitor) { visitor->Trace(item_); }
 
    private:
     Member<HTMLStackItem> item_;
@@ -121,7 +121,7 @@
   const Entry& at(wtf_size_t i) const { return entries_[i]; }
   Entry& at(wtf_size_t i) { return entries_[i]; }
 
-  void Trace(blink::Visitor* visitor) { visitor->Trace(entries_); }
+  void Trace(Visitor* visitor) { visitor->Trace(entries_); }
 
 #ifndef NDEBUG
   void Show();
diff --git a/third_party/blink/renderer/core/html/parser/html_parser_scheduler.cc b/third_party/blink/renderer/core/html/parser/html_parser_scheduler.cc
index da16698..646d97a 100644
--- a/third_party/blink/renderer/core/html/parser/html_parser_scheduler.cc
+++ b/third_party/blink/renderer/core/html/parser/html_parser_scheduler.cc
@@ -64,7 +64,7 @@
 
 HTMLParserScheduler::~HTMLParserScheduler() = default;
 
-void HTMLParserScheduler::Trace(blink::Visitor* visitor) {
+void HTMLParserScheduler::Trace(Visitor* visitor) {
   visitor->Trace(parser_);
 }
 
diff --git a/third_party/blink/renderer/core/html/parser/html_parser_scheduler.h b/third_party/blink/renderer/core/html/parser/html_parser_scheduler.h
index 629d75a..dd8ca0a3 100644
--- a/third_party/blink/renderer/core/html/parser/html_parser_scheduler.h
+++ b/third_party/blink/renderer/core/html/parser/html_parser_scheduler.h
@@ -95,7 +95,7 @@
 
   void Detach();  // Clear active tasks if any.
 
-  void Trace(blink::Visitor*);
+  void Trace(Visitor*);
 
  private:
   bool ShouldYield(const SpeculationsPumpSession&, bool starting_script) const;
diff --git a/third_party/blink/renderer/core/html/parser/html_resource_preloader.cc b/third_party/blink/renderer/core/html/parser/html_resource_preloader.cc
index fbd373f..074049f 100644
--- a/third_party/blink/renderer/core/html/parser/html_resource_preloader.cc
+++ b/third_party/blink/renderer/core/html/parser/html_resource_preloader.cc
@@ -42,7 +42,7 @@
   return MakeGarbageCollected<HTMLResourcePreloader>(document);
 }
 
-void HTMLResourcePreloader::Trace(blink::Visitor* visitor) {
+void HTMLResourcePreloader::Trace(Visitor* visitor) {
   visitor->Trace(document_);
 }
 
diff --git a/third_party/blink/renderer/core/html/parser/html_resource_preloader.h b/third_party/blink/renderer/core/html/parser/html_resource_preloader.h
index 36111e1..3dad651 100644
--- a/third_party/blink/renderer/core/html/parser/html_resource_preloader.h
+++ b/third_party/blink/renderer/core/html/parser/html_resource_preloader.h
@@ -50,7 +50,7 @@
 
   explicit HTMLResourcePreloader(Document&);
 
-  void Trace(blink::Visitor*);
+  void Trace(Visitor*);
 
  protected:
   void Preload(std::unique_ptr<PreloadRequest>,
diff --git a/third_party/blink/renderer/core/html/parser/html_stack_item.h b/third_party/blink/renderer/core/html/parser/html_stack_item.h
index d25fe96..d2778af 100644
--- a/third_party/blink/renderer/core/html/parser/html_stack_item.h
+++ b/third_party/blink/renderer/core/html/parser/html_stack_item.h
@@ -218,7 +218,7 @@
            tag_name == html_names::kWbrTag || tag_name == html_names::kXmpTag;
   }
 
-  void Trace(blink::Visitor* visitor) { visitor->Trace(node_); }
+  void Trace(Visitor* visitor) { visitor->Trace(node_); }
 
  private:
   Member<ContainerNode> node_;
diff --git a/third_party/blink/renderer/core/html/parser/html_tree_builder.cc b/third_party/blink/renderer/core/html/parser/html_tree_builder.cc
index 4d0b134..7075f10 100644
--- a/third_party/blink/renderer/core/html/parser/html_tree_builder.cc
+++ b/third_party/blink/renderer/core/html/parser/html_tree_builder.cc
@@ -269,12 +269,12 @@
       context_element, HTMLStackItem::kItemForContextElement);
 }
 
-void HTMLTreeBuilder::FragmentParsingContext::Trace(blink::Visitor* visitor) {
+void HTMLTreeBuilder::FragmentParsingContext::Trace(Visitor* visitor) {
   visitor->Trace(fragment_);
   visitor->Trace(context_element_stack_item_);
 }
 
-void HTMLTreeBuilder::Trace(blink::Visitor* visitor) {
+void HTMLTreeBuilder::Trace(Visitor* visitor) {
   visitor->Trace(fragment_context_);
   visitor->Trace(tree_);
   visitor->Trace(parser_);
diff --git a/third_party/blink/renderer/core/html/parser/html_tree_builder.h b/third_party/blink/renderer/core/html/parser/html_tree_builder.h
index 8615b67..20a49fc 100644
--- a/third_party/blink/renderer/core/html/parser/html_tree_builder.h
+++ b/third_party/blink/renderer/core/html/parser/html_tree_builder.h
@@ -78,7 +78,7 @@
                   ParserContentPolicy,
                   const HTMLParserOptions&);
   ~HTMLTreeBuilder();
-  void Trace(blink::Visitor*);
+  void Trace(Visitor*);
 
   const HTMLElementStack* OpenElements() const { return tree_.OpenElements(); }
 
@@ -233,7 +233,7 @@
       return context_element_stack_item_.Get();
     }
 
-    void Trace(blink::Visitor*);
+    void Trace(Visitor*);
 
    private:
     Member<DocumentFragment> fragment_;
diff --git a/third_party/blink/renderer/core/html/parser/xss_auditor_delegate.cc b/third_party/blink/renderer/core/html/parser/xss_auditor_delegate.cc
index 79a977e..240cc29 100644
--- a/third_party/blink/renderer/core/html/parser/xss_auditor_delegate.cc
+++ b/third_party/blink/renderer/core/html/parser/xss_auditor_delegate.cc
@@ -72,7 +72,7 @@
   DCHECK(document_);
 }
 
-void XSSAuditorDelegate::Trace(blink::Visitor* visitor) {
+void XSSAuditorDelegate::Trace(Visitor* visitor) {
   visitor->Trace(document_);
 }
 
diff --git a/third_party/blink/renderer/core/html/parser/xss_auditor_delegate.h b/third_party/blink/renderer/core/html/parser/xss_auditor_delegate.h
index 261edde..4379dbb 100644
--- a/third_party/blink/renderer/core/html/parser/xss_auditor_delegate.h
+++ b/third_party/blink/renderer/core/html/parser/xss_auditor_delegate.h
@@ -75,7 +75,7 @@
 
  public:
   explicit XSSAuditorDelegate(Document*);
-  void Trace(blink::Visitor*);
+  void Trace(Visitor*);
 
   void DidBlockScript(const XSSInfo&);
   void SetReportURL(const KURL& url) { report_url_ = url; }
diff --git a/third_party/blink/renderer/core/html/plugin_document.cc b/third_party/blink/renderer/core/html/plugin_document.cc
index b57b300b..5a71676 100644
--- a/third_party/blink/renderer/core/html/plugin_document.cc
+++ b/third_party/blink/renderer/core/html/plugin_document.cc
@@ -62,7 +62,7 @@
     show_dialog_ = show_dialog;
   }
 
-  void Trace(blink::Visitor* visitor) override {
+  void Trace(Visitor* visitor) override {
     visitor->Trace(doc_);
     NativeEventListener::Trace(visitor);
   }
@@ -92,7 +92,7 @@
         embed_element_(nullptr),
         background_color_(background_color) {}
 
-  void Trace(blink::Visitor* visitor) override {
+  void Trace(Visitor* visitor) override {
     visitor->Trace(embed_element_);
     RawDataDocumentParser::Trace(visitor);
   }
@@ -245,7 +245,7 @@
   HTMLDocument::Shutdown();
 }
 
-void PluginDocument::Trace(blink::Visitor* visitor) {
+void PluginDocument::Trace(Visitor* visitor) {
   visitor->Trace(plugin_node_);
   visitor->Trace(before_unload_event_listener_);
   HTMLDocument::Trace(visitor);
diff --git a/third_party/blink/renderer/core/html/plugin_document.h b/third_party/blink/renderer/core/html/plugin_document.h
index 8339e57..7426183 100644
--- a/third_party/blink/renderer/core/html/plugin_document.h
+++ b/third_party/blink/renderer/core/html/plugin_document.h
@@ -54,7 +54,7 @@
 
   void Shutdown() override;
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   class BeforeUnloadEventListener;
diff --git a/third_party/blink/renderer/core/html/track/audio_track.cc b/third_party/blink/renderer/core/html/track/audio_track.cc
index 00f59bd..c89577c 100644
--- a/third_party/blink/renderer/core/html/track/audio_track.cc
+++ b/third_party/blink/renderer/core/html/track/audio_track.cc
@@ -18,7 +18,7 @@
 
 AudioTrack::~AudioTrack() = default;
 
-void AudioTrack::Trace(blink::Visitor* visitor) {
+void AudioTrack::Trace(Visitor* visitor) {
   ScriptWrappable::Trace(visitor);
   TrackBase::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/track/audio_track.h b/third_party/blink/renderer/core/html/track/audio_track.h
index 683e3570..db86e9f 100644
--- a/third_party/blink/renderer/core/html/track/audio_track.h
+++ b/third_party/blink/renderer/core/html/track/audio_track.h
@@ -32,7 +32,7 @@
              const AtomicString& language,
              bool enabled);
   ~AudioTrack() override;
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
   bool enabled() const { return enabled_; }
   void setEnabled(bool);
diff --git a/third_party/blink/renderer/core/html/track/audio_track_list.h b/third_party/blink/renderer/core/html/track/audio_track_list.h
index c211d82..44d62fee 100644
--- a/third_party/blink/renderer/core/html/track/audio_track_list.h
+++ b/third_party/blink/renderer/core/html/track/audio_track_list.h
@@ -24,7 +24,7 @@
   // EventTarget
   const AtomicString& InterfaceName() const override;
 
-  void Trace(blink::Visitor* visitor) override {
+  void Trace(Visitor* visitor) override {
     TrackListBase<AudioTrack>::Trace(visitor);
   }
 };
diff --git a/third_party/blink/renderer/core/html/track/cue_timeline.cc b/third_party/blink/renderer/core/html/track/cue_timeline.cc
index 37f7e02..0060487 100644
--- a/third_party/blink/renderer/core/html/track/cue_timeline.cc
+++ b/third_party/blink/renderer/core/html/track/cue_timeline.cc
@@ -363,7 +363,7 @@
     UpdateActiveCues(MediaElement().currentTime());
 }
 
-void CueTimeline::Trace(blink::Visitor* visitor) {
+void CueTimeline::Trace(Visitor* visitor) {
   visitor->Trace(media_element_);
 }
 
diff --git a/third_party/blink/renderer/core/html/track/cue_timeline.h b/third_party/blink/renderer/core/html/track/cue_timeline.h
index 18869dd..ad33240 100644
--- a/third_party/blink/renderer/core/html/track/cue_timeline.h
+++ b/third_party/blink/renderer/core/html/track/cue_timeline.h
@@ -47,7 +47,7 @@
 
   const CueList& CurrentlyActiveCues() const { return currently_active_cues_; }
 
-  void Trace(blink::Visitor*);
+  void Trace(Visitor*);
 
  private:
   HTMLMediaElement& MediaElement() const { return *media_element_; }
diff --git a/third_party/blink/renderer/core/html/track/html_track_element.cc b/third_party/blink/renderer/core/html/track/html_track_element.cc
index d6c8146..09fc618 100644
--- a/third_party/blink/renderer/core/html/track/html_track_element.cc
+++ b/third_party/blink/renderer/core/html/track/html_track_element.cc
@@ -340,7 +340,7 @@
   return nullptr;
 }
 
-void HTMLTrackElement::Trace(blink::Visitor* visitor) {
+void HTMLTrackElement::Trace(Visitor* visitor) {
   visitor->Trace(track_);
   visitor->Trace(loader_);
   HTMLElement::Trace(visitor);
diff --git a/third_party/blink/renderer/core/html/track/html_track_element.h b/third_party/blink/renderer/core/html/track/html_track_element.h
index b1e7e6b..b51d357 100644
--- a/third_party/blink/renderer/core/html/track/html_track_element.h
+++ b/third_party/blink/renderer/core/html/track/html_track_element.h
@@ -58,7 +58,7 @@
 
   TextTrack* track();
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   ~HTMLTrackElement() override;
diff --git a/third_party/blink/renderer/core/html/track/loadable_text_track.cc b/third_party/blink/renderer/core/html/track/loadable_text_track.cc
index adc5bf3..560607a 100644
--- a/third_party/blink/renderer/core/html/track/loadable_text_track.cc
+++ b/third_party/blink/renderer/core/html/track/loadable_text_track.cc
@@ -63,7 +63,7 @@
   return index;
 }
 
-void LoadableTextTrack::Trace(blink::Visitor* visitor) {
+void LoadableTextTrack::Trace(Visitor* visitor) {
   visitor->Trace(track_element_);
   TextTrack::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/track/loadable_text_track.h b/third_party/blink/renderer/core/html/track/loadable_text_track.h
index 2a5f44c7..f27a7e1 100644
--- a/third_party/blink/renderer/core/html/track/loadable_text_track.h
+++ b/third_party/blink/renderer/core/html/track/loadable_text_track.h
@@ -53,7 +53,7 @@
 
   bool IsDefault() const override;
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   Member<HTMLTrackElement> track_element_;
diff --git a/third_party/blink/renderer/core/html/track/text_track.cc b/third_party/blink/renderer/core/html/track/text_track.cc
index 59c52cd..7a05be9 100644
--- a/third_party/blink/renderer/core/html/track/text_track.cc
+++ b/third_party/blink/renderer/core/html/track/text_track.cc
@@ -368,7 +368,7 @@
   return MediaElement();
 }
 
-void TextTrack::Trace(blink::Visitor* visitor) {
+void TextTrack::Trace(Visitor* visitor) {
   visitor->Trace(cues_);
   visitor->Trace(active_cues_);
   visitor->Trace(track_list_);
diff --git a/third_party/blink/renderer/core/html/track/text_track.h b/third_party/blink/renderer/core/html/track/text_track.h
index 6f29197..6117240 100644
--- a/third_party/blink/renderer/core/html/track/text_track.h
+++ b/third_party/blink/renderer/core/html/track/text_track.h
@@ -133,7 +133,7 @@
   const AtomicString& InterfaceName() const override;
   ExecutionContext* GetExecutionContext() const override;
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  protected:
   void AddListOfCues(HeapVector<Member<TextTrackCue>>&);
diff --git a/third_party/blink/renderer/core/html/track/text_track_container.cc b/third_party/blink/renderer/core/html/track/text_track_container.cc
index 2b7b442..feded82 100644
--- a/third_party/blink/renderer/core/html/track/text_track_container.cc
+++ b/third_party/blink/renderer/core/html/track/text_track_container.cc
@@ -55,7 +55,7 @@
         entries[0]->target()->GetLayoutObject());
   }
 
-  void Trace(blink::Visitor* visitor) override {
+  void Trace(Visitor* visitor) override {
     visitor->Trace(text_track_container_);
     ResizeObserver::Delegate::Trace(visitor);
   }
@@ -69,7 +69,7 @@
 TextTrackContainer::TextTrackContainer(Document& document)
     : HTMLDivElement(document), default_font_size_(0) {}
 
-void TextTrackContainer::Trace(blink::Visitor* visitor) {
+void TextTrackContainer::Trace(Visitor* visitor) {
   visitor->Trace(video_size_observer_);
   HTMLDivElement::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/track/text_track_container.h b/third_party/blink/renderer/core/html/track/text_track_container.h
index 01a234e..0f369a3 100644
--- a/third_party/blink/renderer/core/html/track/text_track_container.h
+++ b/third_party/blink/renderer/core/html/track/text_track_container.h
@@ -52,7 +52,7 @@
   void UpdateDisplay(HTMLMediaElement&, ExposingControls);
   void UpdateDefaultFontSize(LayoutObject*);
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   bool IsTextTrackContainer() const override { return true; }
diff --git a/third_party/blink/renderer/core/html/track/text_track_cue.cc b/third_party/blink/renderer/core/html/track/text_track_cue.cc
index ee1c59a..08b901b 100644
--- a/third_party/blink/renderer/core/html/track/text_track_cue.cc
+++ b/third_party/blink/renderer/core/html/track/text_track_cue.cc
@@ -132,7 +132,7 @@
   return event_target_names::kTextTrackCue;
 }
 
-void TextTrackCue::Trace(blink::Visitor* visitor) {
+void TextTrackCue::Trace(Visitor* visitor) {
   visitor->Trace(track_);
   EventTargetWithInlineData::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/track/text_track_cue.h b/third_party/blink/renderer/core/html/track/text_track_cue.h
index e992c3ff..83efced 100644
--- a/third_party/blink/renderer/core/html/track/text_track_cue.h
+++ b/third_party/blink/renderer/core/html/track/text_track_cue.h
@@ -97,7 +97,7 @@
   DEFINE_ATTRIBUTE_EVENT_LISTENER(enter, kEnter);
   DEFINE_ATTRIBUTE_EVENT_LISTENER(exit, kExit);
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  protected:
   TextTrackCue(double start, double end);
diff --git a/third_party/blink/renderer/core/html/track/text_track_cue_list.cc b/third_party/blink/renderer/core/html/track/text_track_cue_list.cc
index 64d5936..b7b18a9 100644
--- a/third_party/blink/renderer/core/html/track/text_track_cue_list.cc
+++ b/third_party/blink/renderer/core/html/track/text_track_cue_list.cc
@@ -139,7 +139,7 @@
   first_invalid_index_ = list_.size();
 }
 
-void TextTrackCueList::Trace(blink::Visitor* visitor) {
+void TextTrackCueList::Trace(Visitor* visitor) {
   visitor->Trace(list_);
   ScriptWrappable::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/track/text_track_cue_list.h b/third_party/blink/renderer/core/html/track/text_track_cue_list.h
index a08d4e4..125d21a 100644
--- a/third_party/blink/renderer/core/html/track/text_track_cue_list.h
+++ b/third_party/blink/renderer/core/html/track/text_track_cue_list.h
@@ -60,7 +60,7 @@
   }
   void ValidateCueIndexes();
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   wtf_size_t FindInsertionIndex(const TextTrackCue*) const;
diff --git a/third_party/blink/renderer/core/html/track/text_track_list.cc b/third_party/blink/renderer/core/html/track/text_track_list.cc
index 126f1e0eb..c1ca2a7 100644
--- a/third_party/blink/renderer/core/html/track/text_track_list.cc
+++ b/third_party/blink/renderer/core/html/track/text_track_list.cc
@@ -296,7 +296,7 @@
   return owner_;
 }
 
-void TextTrackList::Trace(blink::Visitor* visitor) {
+void TextTrackList::Trace(Visitor* visitor) {
   visitor->Trace(owner_);
   visitor->Trace(add_track_tracks_);
   visitor->Trace(element_tracks_);
diff --git a/third_party/blink/renderer/core/html/track/text_track_list.h b/third_party/blink/renderer/core/html/track/text_track_list.h
index f8f8ad3f..551b04a 100644
--- a/third_party/blink/renderer/core/html/track/text_track_list.h
+++ b/third_party/blink/renderer/core/html/track/text_track_list.h
@@ -74,7 +74,7 @@
 
   bool HasShowingTracks();
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   void ScheduleTrackEvent(const AtomicString& event_name, TextTrack*);
diff --git a/third_party/blink/renderer/core/html/track/track_base.cc b/third_party/blink/renderer/core/html/track/track_base.cc
index 290fd5f..06186ff 100644
--- a/third_party/blink/renderer/core/html/track/track_base.cc
+++ b/third_party/blink/renderer/core/html/track/track_base.cc
@@ -48,7 +48,7 @@
 
 TrackBase::~TrackBase() = default;
 
-void TrackBase::Trace(blink::Visitor* visitor) {
+void TrackBase::Trace(Visitor* visitor) {
   Supplementable<TrackBase>::Trace(visitor);
   visitor->Trace(media_element_);
 }
diff --git a/third_party/blink/renderer/core/html/track/track_base.h b/third_party/blink/renderer/core/html/track/track_base.h
index 7a58eec..d752883 100644
--- a/third_party/blink/renderer/core/html/track/track_base.h
+++ b/third_party/blink/renderer/core/html/track/track_base.h
@@ -53,7 +53,7 @@
   }
   HTMLMediaElement* MediaElement() const { return media_element_; }
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  protected:
   TrackBase(WebMediaPlayer::TrackType,
diff --git a/third_party/blink/renderer/core/html/track/track_event.cc b/third_party/blink/renderer/core/html/track/track_event.cc
index 218fb46..535422a 100644
--- a/third_party/blink/renderer/core/html/track/track_event.cc
+++ b/third_party/blink/renderer/core/html/track/track_event.cc
@@ -78,7 +78,7 @@
   }
 }
 
-void TrackEvent::Trace(blink::Visitor* visitor) {
+void TrackEvent::Trace(Visitor* visitor) {
   visitor->Trace(track_);
   Event::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/track/track_event.h b/third_party/blink/renderer/core/html/track/track_event.h
index ce10e6c..9c59e32 100644
--- a/third_party/blink/renderer/core/html/track/track_event.h
+++ b/third_party/blink/renderer/core/html/track/track_event.h
@@ -59,7 +59,7 @@
 
   void track(VideoTrackOrAudioTrackOrTextTrack&);
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   Member<TrackBase> track_;
diff --git a/third_party/blink/renderer/core/html/track/track_list_base.h b/third_party/blink/renderer/core/html/track/track_list_base.h
index ebfc9ac..93b747f 100644
--- a/third_party/blink/renderer/core/html/track/track_list_base.h
+++ b/third_party/blink/renderer/core/html/track/track_list_base.h
@@ -79,7 +79,7 @@
     ScheduleEvent(Event::Create(event_type_names::kChange));
   }
 
-  void Trace(blink::Visitor* visitor) override {
+  void Trace(Visitor* visitor) override {
     visitor->Trace(tracks_);
     visitor->Trace(media_element_);
     EventTargetWithInlineData::Trace(visitor);
diff --git a/third_party/blink/renderer/core/html/track/video_track.cc b/third_party/blink/renderer/core/html/track/video_track.cc
index 740c1f1..ee63e77 100644
--- a/third_party/blink/renderer/core/html/track/video_track.cc
+++ b/third_party/blink/renderer/core/html/track/video_track.cc
@@ -18,7 +18,7 @@
 
 VideoTrack::~VideoTrack() = default;
 
-void VideoTrack::Trace(blink::Visitor* visitor) {
+void VideoTrack::Trace(Visitor* visitor) {
   ScriptWrappable::Trace(visitor);
   TrackBase::Trace(visitor);
 }
diff --git a/third_party/blink/renderer/core/html/track/video_track.h b/third_party/blink/renderer/core/html/track/video_track.h
index 3f836c9a6..5af8076 100644
--- a/third_party/blink/renderer/core/html/track/video_track.h
+++ b/third_party/blink/renderer/core/html/track/video_track.h
@@ -32,7 +32,7 @@
              const AtomicString& language,
              bool selected);
   ~VideoTrack() override;
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
   bool selected() const { return selected_; }
   void setSelected(bool);
diff --git a/third_party/blink/renderer/core/html/track/video_track_list.h b/third_party/blink/renderer/core/html/track/video_track_list.h
index fbe37cf..96c14cf 100644
--- a/third_party/blink/renderer/core/html/track/video_track_list.h
+++ b/third_party/blink/renderer/core/html/track/video_track_list.h
@@ -26,7 +26,7 @@
 
   void TrackSelected(WebMediaPlayer::TrackId selected_track_id);
 
-  void Trace(blink::Visitor* visitor) override {
+  void Trace(Visitor* visitor) override {
     TrackListBase<VideoTrack>::Trace(visitor);
   }
 };
diff --git a/third_party/blink/renderer/core/html/track/vtt/vtt_cue.cc b/third_party/blink/renderer/core/html/track/vtt/vtt_cue.cc
index d6abeb1..88f5e5e 100644
--- a/third_party/blink/renderer/core/html/track/vtt/vtt_cue.cc
+++ b/third_party/blink/renderer/core/html/track/vtt/vtt_cue.cc
@@ -1130,7 +1130,7 @@
   return cue_background_box_->GetDocument();
 }
 
-void VTTCue::Trace(blink::Visitor* visitor) {
+void VTTCue::Trace(Visitor* visitor) {
   visitor->Trace(region_);
   visitor->Trace(vtt_node_tree_);
   visitor->Trace(cue_background_box_);
diff --git a/third_party/blink/renderer/core/html/track/vtt/vtt_cue.h b/third_party/blink/renderer/core/html/track/vtt/vtt_cue.h
index 2d2df08..d5265a6 100644
--- a/third_party/blink/renderer/core/html/track/vtt/vtt_cue.h
+++ b/third_party/blink/renderer/core/html/track/vtt/vtt_cue.h
@@ -155,7 +155,7 @@
   String ToString() const override;
 #endif
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   Document& GetDocument() const;
diff --git a/third_party/blink/renderer/core/html/track/vtt/vtt_parser.cc b/third_party/blink/renderer/core/html/track/vtt/vtt_parser.cc
index 42c9381..af2c7e5 100644
--- a/third_party/blink/renderer/core/html/track/vtt/vtt_parser.cc
+++ b/third_party/blink/renderer/core/html/track/vtt/vtt_parser.cc
@@ -600,7 +600,7 @@
   }
 }
 
-void VTTParser::Trace(blink::Visitor* visitor) {
+void VTTParser::Trace(Visitor* visitor) {
   visitor->Trace(document_);
   visitor->Trace(current_region_);
   visitor->Trace(client_);
diff --git a/third_party/blink/renderer/core/html/track/vtt/vtt_parser.h b/third_party/blink/renderer/core/html/track/vtt/vtt_parser.h
index 209228d..cad46f9 100644
--- a/third_party/blink/renderer/core/html/track/vtt/vtt_parser.h
+++ b/third_party/blink/renderer/core/html/track/vtt/vtt_parser.h
@@ -53,7 +53,7 @@
   virtual void NewCuesParsed() = 0;
   virtual void FileFailedToParse() = 0;
 
-  void Trace(blink::Visitor* visitor) override {}
+  void Trace(Visitor* visitor) override {}
 };
 
 // Implementation of the WebVTT parser algorithm.
@@ -112,7 +112,7 @@
   // Transfers ownership of last parsed cues to caller.
   void GetNewCues(HeapVector<Member<TextTrackCue>>&);
 
-  void Trace(blink::Visitor*);
+  void Trace(Visitor*);
 
  private:
   Member<Document> document_;
diff --git a/third_party/blink/renderer/core/html/track/vtt/vtt_region.cc b/third_party/blink/renderer/core/html/track/vtt/vtt_region.cc
index 44d1347..d2612667 100644
--- a/third_party/blink/renderer/core/html/track/vtt/vtt_region.cc
+++ b/third_party/blink/renderer/core/html/track/vtt/vtt_region.cc
@@ -413,7 +413,7 @@
   DisplayLastVTTCueBox();
 }
 
-void VTTRegion::Trace(blink::Visitor* visitor) {
+void VTTRegion::Trace(Visitor* visitor) {
   visitor->Trace(cue_container_);
   visitor->Trace(region_display_tree_);
   ScriptWrappable::Trace(visitor);
diff --git a/third_party/blink/renderer/core/html/track/vtt/vtt_region.h b/third_party/blink/renderer/core/html/track/vtt/vtt_region.h
index 44958e7..0adac94 100644
--- a/third_party/blink/renderer/core/html/track/vtt/vtt_region.h
+++ b/third_party/blink/renderer/core/html/track/vtt/vtt_region.h
@@ -88,7 +88,7 @@
   void DisplayLastVTTCueBox();
   void WillRemoveVTTCueBox(VTTCueBox*);
 
-  void Trace(blink::Visitor*) override;
+  void Trace(Visitor*) override;
 
  private:
   void PrepareRegionDisplayTree();