Remove unused kHideIncorrectlySizedFullscreenFrames feature flag

Bug: 977452
Change-Id: I5ed7e10988f45e648d582914b173878e4ad19c7b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1673649
Reviewed-by: Antoine Labour <piman@chromium.org>
Reviewed-by: Khushal <khushalsagar@chromium.org>
Commit-Queue: Tommy Steimel <steimel@chromium.org>
Cr-Commit-Position: refs/heads/master@{#671816}
diff --git a/content/browser/renderer_host/render_widget_host_view_android.cc b/content/browser/renderer_host/render_widget_host_view_android.cc
index 0024507..fd3fbc4e0 100644
--- a/content/browser/renderer_host/render_widget_host_view_android.cc
+++ b/content/browser/renderer_host/render_widget_host_view_android.cc
@@ -1089,9 +1089,7 @@
 
 void RenderWidgetHostViewAndroid::EvictFrameIfNecessary() {
   if (!host()->delegate()->IsFullscreenForCurrentTab() ||
-      current_surface_size_ == view_.GetPhysicalBackingSize() ||
-      !base::FeatureList::IsEnabled(
-          features::kHideIncorrectlySizedFullscreenFrames)) {
+      current_surface_size_ == view_.GetPhysicalBackingSize()) {
     return;
   }
   // When we're in a fullscreen and and doing a resize we show black
diff --git a/content/public/common/content_features.cc b/content/public/common/content_features.cc
index 8430cac..1f02c6e 100644
--- a/content/public/common/content_features.cc
+++ b/content/public/common/content_features.cc
@@ -729,10 +729,6 @@
 const base::Feature kAndroidAutofillAccessibility{
     "AndroidAutofillAccessibility", base::FEATURE_ENABLED_BY_DEFAULT};
 
-// Enables hiding incorrectly-sized frames while in fullscreen.
-const base::Feature kHideIncorrectlySizedFullscreenFrames{
-    "HideIncorrectlySizedFullscreenFrames", base::FEATURE_ENABLED_BY_DEFAULT};
-
 // Sets moderate binding to background renderers playing media, when enabled.
 // Else the renderer will have strong binding.
 const base::Feature kBackgroundMediaRendererHasModerateBinding{
diff --git a/content/public/common/content_features.h b/content/public/common/content_features.h
index 17e13a5..3657df1 100644
--- a/content/public/common/content_features.h
+++ b/content/public/common/content_features.h
@@ -157,7 +157,6 @@
 CONTENT_EXPORT extern const base::Feature
     kBackgroundMediaRendererHasModerateBinding;
 CONTENT_EXPORT extern const base::Feature kForce60HzRefreshRate;
-CONTENT_EXPORT extern const base::Feature kHideIncorrectlySizedFullscreenFrames;
 CONTENT_EXPORT extern const base::Feature kWarmUpNetworkProcess;
 CONTENT_EXPORT extern const base::Feature kWebNfc;
 #endif  // defined(OS_ANDROID)