content/browser/renderer_host/render_widget_host_view_aura_unittest.cc

// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "content/browser/renderer_host/render_widget_host_view_aura.h"

#include <stddef.h>
#include <stdint.h>

#include <tuple>
#include <utility>

#include "base/command_line.h"
#include "base/location.h"
#include "base/macros.h"
#include "base/memory/ptr_util.h"
#include "base/memory/shared_memory.h"
#include "base/run_loop.h"
#include "base/single_thread_task_runner.h"
#include "base/strings/utf_string_conversions.h"
#include "base/test/bind_test_util.h"
#include "base/test/null_task_runner.h"
#include "base/test/scoped_feature_list.h"
#include "base/test/test_timeouts.h"
#include "base/threading/thread_task_runner_handle.h"
#include "base/time/time.h"
#include "build/build_config.h"
#include "cc/trees/render_frame_metadata.h"
#include "components/viz/common/features.h"
#include "components/viz/common/frame_sinks/begin_frame_args.h"
#include "components/viz/common/quads/compositor_frame.h"
#include "components/viz/common/quads/compositor_frame_metadata.h"
#include "components/viz/common/surfaces/child_local_surface_id_allocator.h"
#include "components/viz/common/surfaces/parent_local_surface_id_allocator.h"
#include "components/viz/service/display_embedder/server_shared_bitmap_manager.h"
#include "components/viz/service/frame_sinks/compositor_frame_sink_support.h"
#include "components/viz/service/frame_sinks/frame_sink_manager_impl.h"
#include "components/viz/service/hit_test/hit_test_manager.h"
#include "components/viz/service/surfaces/surface.h"
#include "components/viz/test/begin_frame_args_test.h"
#include "components/viz/test/compositor_frame_helpers.h"
#include "components/viz/test/fake_external_begin_frame_source.h"
#include "components/viz/test/fake_surface_observer.h"
#include "components/viz/test/test_latest_local_surface_id_lookup_delegate.h"
#include "content/browser/browser_main_loop.h"
#include "content/browser/compositor/test/test_image_transport_factory.h"
#include "content/browser/frame_host/render_widget_host_view_guest.h"
#include "content/browser/gpu/compositor_util.h"
#include "content/browser/renderer_host/delegated_frame_host.h"
#include "content/browser/renderer_host/delegated_frame_host_client_aura.h"
#include "content/browser/renderer_host/input/input_router.h"
#include "content/browser/renderer_host/input/mouse_wheel_event_queue.h"
#include "content/browser/renderer_host/overscroll_controller.h"
#include "content/browser/renderer_host/overscroll_controller_delegate.h"
#include "content/browser/renderer_host/render_frame_metadata_provider_impl.h"
#include "content/browser/renderer_host/render_view_host_factory.h"
#include "content/browser/renderer_host/render_widget_host_delegate.h"
#include "content/browser/renderer_host/render_widget_host_impl.h"
#include "content/browser/renderer_host/render_widget_host_view_event_handler.h"
#include "content/browser/renderer_host/text_input_manager.h"
#include "content/browser/web_contents/web_contents_view_aura.h"
#include "content/common/input/synthetic_web_input_event_builders.h"
#include "content/common/input_messages.h"
#include "content/common/text_input_state.h"
#include "content/common/view_messages.h"
#include "content/common/widget_messages.h"
#include "content/public/browser/keyboard_event_processing_result.h"
#include "content/public/browser/render_widget_host_view.h"
#include "content/public/browser/web_contents_view_delegate.h"
#include "content/public/common/content_features.h"
#include "content/public/common/context_menu_params.h"
#include "content/public/test/mock_render_process_host.h"
#include "content/public/test/test_browser_context.h"
#include "content/test/fake_renderer_compositor_frame_sink.h"
#include "content/test/mock_render_widget_host_delegate.h"
#include "content/test/mock_widget_impl.h"
#include "content/test/test_overscroll_delegate.h"
#include "content/test/test_render_view_host.h"
#include "content/test/test_web_contents.h"
#include "ipc/ipc_message.h"
#include "ipc/ipc_test_sink.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/aura/client/aura_constants.h"
#include "ui/aura/client/screen_position_client.h"
#include "ui/aura/client/window_parenting_client.h"
#include "ui/aura/env.h"
#include "ui/aura/layout_manager.h"
#include "ui/aura/scoped_keyboard_hook.h"
#include "ui/aura/test/aura_test_helper.h"
#include "ui/aura/test/aura_test_utils.h"
#include "ui/aura/test/test_cursor_client.h"
#include "ui/aura/test/test_screen.h"
#include "ui/aura/test/test_window_delegate.h"
#include "ui/aura/window.h"
#include "ui/aura/window_event_dispatcher.h"
#include "ui/aura/window_observer.h"
#include "ui/base/clipboard/clipboard.h"
#include "ui/base/ime/input_method.h"
#include "ui/base/ime/input_method_factory.h"
#include "ui/base/ime/input_method_keyboard_controller.h"
#include "ui/base/ime/mock_input_method.h"
#include "ui/base/ui_base_features.h"
#include "ui/base/ui_base_switches.h"
#include "ui/base/ui_base_types.h"
#include "ui/compositor/compositor.h"
#include "ui/compositor/layer_tree_owner.h"
#include "ui/compositor/test/draw_waiter_for_test.h"
#include "ui/display/display.h"
#include "ui/display/screen.h"
#include "ui/events/blink/blink_event_util.h"
#include "ui/events/blink/blink_features.h"
#include "ui/events/blink/web_input_event_traits.h"
#include "ui/events/event.h"
#include "ui/events/event_utils.h"
#include "ui/events/gesture_detection/gesture_configuration.h"
#include "ui/events/gestures/motion_event_aura.h"
#include "ui/events/keycodes/dom/dom_code.h"
#include "ui/events/keycodes/dom/keycode_converter.h"
#include "ui/events/keycodes/keyboard_code_conversion.h"
#include "ui/events/test/event_generator.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/selection_bound.h"
#include "ui/wm/core/default_activation_client.h"
#include "ui/wm/core/default_screen_position_client.h"
#include "ui/wm/core/window_util.h"

#if defined(OS_CHROMEOS)
#include "ui/base/ime/input_method.h"
#endif

using testing::_;

using blink::WebGestureEvent;
using blink::WebInputEvent;
using blink::WebMouseEvent;
using blink::WebMouseWheelEvent;
using blink::WebTouchEvent;
using blink::WebTouchPoint;
using ui::WebInputEventTraits;
using viz::FrameEvictionManager;

#define EXPECT_EVICTED(view)                   \
  {                                            \
    EXPECT_FALSE((view)->HasPrimarySurface()); \
    EXPECT_FALSE((view)->HasSavedFrame());     \
  }

#define EXPECT_HAS_FRAME(view)                \
  {                                           \
    EXPECT_TRUE((view)->HasPrimarySurface()); \
    EXPECT_TRUE((view)->HasSavedFrame());     \
  }

namespace content {

void InstallDelegatedFrameHostClient(
    RenderWidgetHostViewAura* render_widget_host_view,
    std::unique_ptr<DelegatedFrameHostClient> delegated_frame_host_client);

const viz::LocalSurfaceId kArbitraryLocalSurfaceId(
    1,
    base::UnguessableToken::Deserialize(2, 3));

std::string GetMessageNames(
    const MockWidgetInputHandler::MessageVector& events) {
  std::vector<std::string> result;
  for (auto& event : events)
    result.push_back(event->name());
  return base::JoinString(result, " ");
}

uint64_t FrameIndexForView(RenderWidgetHostViewAura* view) {
  return ImageTransportFactory::GetInstance()
      ->GetContextFactoryPrivate()
      ->GetFrameSinkManager()
      ->surface_manager()
      ->GetSurfaceForId(view->GetCurrentSurfaceId())
      ->GetActiveFrameIndex();
}

const gfx::Rect& DamageRectForView(RenderWidgetHostViewAura* view) {
  return ImageTransportFactory::GetInstance()
      ->GetContextFactoryPrivate()
      ->GetFrameSinkManager()
      ->surface_manager()
      ->GetSurfaceForId(view->GetCurrentSurfaceId())
      ->GetActiveFrame()
      .render_pass_list.back()
      ->damage_rect;
}

// Simple observer that keeps track of changes to a window for tests.
class TestWindowObserver : public aura::WindowObserver {
 public:
  explicit TestWindowObserver(aura::Window* window_to_observe)
      : window_(window_to_observe) {
    window_->AddObserver(this);
  }
  ~TestWindowObserver() override {
    if (window_)
      window_->RemoveObserver(this);
  }

  bool destroyed() const { return destroyed_; }

  // aura::WindowObserver overrides:
  void OnWindowDestroyed(aura::Window* window) override {
    CHECK_EQ(window, window_);
    destroyed_ = true;
    window_ = nullptr;
  }

 private:
  // Window that we're observing, or nullptr if it's been destroyed.
  aura::Window* window_;

  // Was |window_| destroyed?
  bool destroyed_;

  DISALLOW_COPY_AND_ASSIGN(TestWindowObserver);
};

class FakeWindowEventDispatcher : public aura::WindowEventDispatcher {
 public:
  FakeWindowEventDispatcher(aura::WindowTreeHost* host)
      : WindowEventDispatcher(host, true), processed_touch_event_count_(0) {}

  void ProcessedTouchEvent(
      uint32_t unique_event_id,
      aura::Window* window,
      ui::EventResult result,
      bool is_source_touch_event_set_non_blocking) override {
    WindowEventDispatcher::ProcessedTouchEvent(
        unique_event_id, window, result,
        is_source_touch_event_set_non_blocking);
    processed_touch_event_count_++;
  }

  size_t GetAndResetProcessedTouchEventCount() {
    size_t count = processed_touch_event_count_;
    processed_touch_event_count_ = 0;
    return count;
  }

 private:
  size_t processed_touch_event_count_;
};

class FakeDelegatedFrameHostClientAura : public DelegatedFrameHostClientAura {
 public:
  explicit FakeDelegatedFrameHostClientAura(
      RenderWidgetHostViewAura* render_widget_host_view)
      : DelegatedFrameHostClientAura(render_widget_host_view) {}
  ~FakeDelegatedFrameHostClientAura() override = default;

 private:
  DISALLOW_COPY_AND_ASSIGN(FakeDelegatedFrameHostClientAura);
};

class FakeRenderWidgetHostViewAura : public RenderWidgetHostViewAura {
 public:
  FakeRenderWidgetHostViewAura(RenderWidgetHost* widget,
                               bool is_guest_view_hack)
      : RenderWidgetHostViewAura(widget,
                                 is_guest_view_hack,
                                 false /* is_mus_browser_plugin_guest */),
        is_guest_view_hack_(is_guest_view_hack),
        delegated_frame_host_client_(
            new FakeDelegatedFrameHostClientAura(this)) {
    InstallDelegatedFrameHostClient(
        this, base::WrapUnique(delegated_frame_host_client_));
    CreateNewRendererCompositorFrameSink();
  }

  ~FakeRenderWidgetHostViewAura() override {}

  void CreateNewRendererCompositorFrameSink() {
    viz::mojom::CompositorFrameSinkPtr sink;
    viz::mojom::CompositorFrameSinkRequest sink_request =
        mojo::MakeRequest(&sink);
    viz::mojom::CompositorFrameSinkClientRequest client_request =
        mojo::MakeRequest(&renderer_compositor_frame_sink_ptr_);
    renderer_compositor_frame_sink_ =
        std::make_unique<FakeRendererCompositorFrameSink>(
            std::move(sink), std::move(client_request));
    DidCreateNewRendererCompositorFrameSink(
        renderer_compositor_frame_sink_ptr_.get());
  }

  void UseFakeDispatcher() {
    dispatcher_ = new FakeWindowEventDispatcher(window()->GetHost());
    std::unique_ptr<aura::WindowEventDispatcher> dispatcher(dispatcher_);
    aura::test::SetHostDispatcher(window()->GetHost(), std::move(dispatcher));
  }

  void RunOnCompositingDidCommit() {
    GetDelegatedFrameHost()->OnCompositingDidCommitForTesting(
        window()->GetHost()->compositor());
  }

  viz::SurfaceId surface_id() const {
    return GetDelegatedFrameHost()->GetCurrentSurfaceId();
  }

  bool HasPrimarySurface() const {
    return GetDelegatedFrameHost()->HasPrimarySurface();
  }

  bool HasFallbackSurface() const override {
    return GetDelegatedFrameHost()->HasFallbackSurface();
  }

  bool HasSavedFrame() const {
    return GetDelegatedFrameHost()->HasSavedFrame();
  }

  void ReclaimResources(const std::vector<viz::ReturnedResource>& resources) {
    GetDelegatedFrameHost()->ReclaimResources(resources);
  }

  const ui::MotionEventAura& pointer_state() {
    return event_handler()->pointer_state();
  }

  void SetRenderFrameMetadata(cc::RenderFrameMetadata metadata) {
    host()->render_frame_metadata_provider()->SetLastRenderFrameMetadataForTest(
        metadata);
  }

  bool is_guest_view_hack() { return is_guest_view_hack_; }

  gfx::Size last_frame_size_;
  FakeWindowEventDispatcher* dispatcher_;
  std::unique_ptr<FakeRendererCompositorFrameSink>
      renderer_compositor_frame_sink_;

 private:
  bool is_guest_view_hack_;
  FakeDelegatedFrameHostClientAura* delegated_frame_host_client_;
  viz::mojom::CompositorFrameSinkClientPtr renderer_compositor_frame_sink_ptr_;

  DISALLOW_COPY_AND_ASSIGN(FakeRenderWidgetHostViewAura);
};

// A layout manager that always resizes a child to the root window size.
class FullscreenLayoutManager : public aura::LayoutManager {
 public:
  explicit FullscreenLayoutManager(aura::Window* owner) : owner_(owner) {}
  ~FullscreenLayoutManager() override {}

  // Overridden from aura::LayoutManager:
  void OnWindowResized() override {
    aura::Window::Windows::const_iterator i;
    for (i = owner_->children().begin(); i != owner_->children().end(); ++i) {
      (*i)->SetBounds(gfx::Rect());
    }
  }
  void OnWindowAddedToLayout(aura::Window* child) override {
    child->SetBounds(gfx::Rect());
  }
  void OnWillRemoveWindowFromLayout(aura::Window* child) override {}
  void OnWindowRemovedFromLayout(aura::Window* child) override {}
  void OnChildWindowVisibilityChanged(aura::Window* child,
                                      bool visible) override {}
  void SetChildBounds(aura::Window* child,
                      const gfx::Rect& requested_bounds) override {
    SetChildBoundsDirect(child, gfx::Rect(owner_->bounds().size()));
  }

 private:
  aura::Window* owner_;
  DISALLOW_COPY_AND_ASSIGN(FullscreenLayoutManager);
};

class MockRenderWidgetHostImpl : public RenderWidgetHostImpl {
 public:
  ~MockRenderWidgetHostImpl() override {}

  // Extracts |latency_info| for wheel event, and stores it in
  // |lastWheelOrTouchEventLatencyInfo|.
  void ForwardWheelEventWithLatencyInfo(
      const blink::WebMouseWheelEvent& wheel_event,
      const ui::LatencyInfo& ui_latency) override {
    RenderWidgetHostImpl::ForwardWheelEventWithLatencyInfo(wheel_event,
                                                           ui_latency);
    lastWheelOrTouchEventLatencyInfo = ui::LatencyInfo(ui_latency);
  }

  // Extracts |latency_info| for touch event, and stores it in
  // |lastWheelOrTouchEventLatencyInfo|.
  void ForwardTouchEventWithLatencyInfo(
      const blink::WebTouchEvent& touch_event,
      const ui::LatencyInfo& ui_latency) override {
    RenderWidgetHostImpl::ForwardTouchEventWithLatencyInfo(touch_event,
                                                           ui_latency);
    lastWheelOrTouchEventLatencyInfo = ui::LatencyInfo(ui_latency);
  }

  void ForwardGestureEventWithLatencyInfo(
      const blink::WebGestureEvent& gesture_event,
      const ui::LatencyInfo& ui_latency) override {
    RenderWidgetHostImpl::ForwardGestureEventWithLatencyInfo(gesture_event,
                                                             ui_latency);
    last_forwarded_gesture_event_ = gesture_event;
  }

  base::Optional<WebGestureEvent> GetAndResetLastForwardedGestureEvent() {
    base::Optional<WebGestureEvent> ret;
    last_forwarded_gesture_event_.swap(ret);
    return ret;
  }

  static MockRenderWidgetHostImpl* Create(RenderWidgetHostDelegate* delegate,
                                          RenderProcessHost* process,
                                          int32_t routing_id) {
    mojom::WidgetPtr widget;
    std::unique_ptr<MockWidgetImpl> widget_impl =
        std::make_unique<MockWidgetImpl>(mojo::MakeRequest(&widget));

    return new MockRenderWidgetHostImpl(delegate, process, routing_id,
                                        std::move(widget_impl),
                                        std::move(widget));
  }
  ui::LatencyInfo lastWheelOrTouchEventLatencyInfo;

  MockWidgetInputHandler* input_handler() {
    return widget_impl_->input_handler();
  }

  void reset_new_content_rendering_timeout_fired() {
    new_content_rendering_timeout_fired_ = false;
  }

  bool new_content_rendering_timeout_fired() const {
    return new_content_rendering_timeout_fired_;
  }

 private:
  MockRenderWidgetHostImpl(RenderWidgetHostDelegate* delegate,
                           RenderProcessHost* process,
                           int32_t routing_id,
                           std::unique_ptr<MockWidgetImpl> widget_impl,
                           mojom::WidgetPtr widget)
      : RenderWidgetHostImpl(delegate,
                             process,
                             routing_id,
                             std::move(widget),
                             false),
        widget_impl_(std::move(widget_impl)) {
    lastWheelOrTouchEventLatencyInfo = ui::LatencyInfo();
  }

  void NotifyNewContentRenderingTimeoutForTesting() override {
    new_content_rendering_timeout_fired_ = true;
  }

  bool new_content_rendering_timeout_fired_ = false;
  std::unique_ptr<MockWidgetImpl> widget_impl_;
  base::Optional<WebGestureEvent> last_forwarded_gesture_event_;
};

class TestScopedKeyboardHook : public aura::ScopedKeyboardHook {
 public:
  TestScopedKeyboardHook();
  ~TestScopedKeyboardHook() override;

  // aura::ScopedKeyboardHook override.
  bool IsKeyLocked(ui::DomCode dom_code) override;

  // Set up the keys being locked for testing.  One of these methods must be
  // called before using an instance.
  void LockAllKeys();
  void LockSpecificKey(ui::DomCode dom_code);

 private:
  bool keyboard_lock_active_ = false;
  base::Optional<ui::DomCode> locked_key_;

  DISALLOW_COPY_AND_ASSIGN(TestScopedKeyboardHook);
};

TestScopedKeyboardHook::TestScopedKeyboardHook() = default;

TestScopedKeyboardHook::~TestScopedKeyboardHook() = default;

bool TestScopedKeyboardHook::IsKeyLocked(ui::DomCode dom_code) {
  DCHECK(keyboard_lock_active_) << "Did you forget to reserve keys to lock?";
  return !locked_key_ || (locked_key_.value() == dom_code);
}

void TestScopedKeyboardHook::LockAllKeys() {
  keyboard_lock_active_ = true;
  locked_key_.reset();
}

void TestScopedKeyboardHook::LockSpecificKey(ui::DomCode dom_code) {
  keyboard_lock_active_ = true;
  locked_key_ = dom_code;
}

class RenderWidgetHostViewAuraTest : public testing::Test {
 public:
  RenderWidgetHostViewAuraTest()
      : widget_host_uses_shutdown_to_destroy_(false),
        is_guest_view_hack_(false) {
    ui::GestureConfiguration::GetInstance()->set_scroll_debounce_interval_in_ms(
        0);
  }

  static void InstallDelegatedFrameHostClient(
      RenderWidgetHostViewAura* view,
      std::unique_ptr<DelegatedFrameHostClient> delegated_frame_host_client) {
    // Follow RWHVAura code that does not create DelegateFrameHost when there is
    // no valid frame sink id.
    if (!view->frame_sink_id_.is_valid())
      return;

    view->delegated_frame_host_client_ = std::move(delegated_frame_host_client);
    view->delegated_frame_host_ = nullptr;
    view->delegated_frame_host_ = std::make_unique<DelegatedFrameHost>(
        view->frame_sink_id_, view->delegated_frame_host_client_.get(),
        false /* should_register_frame_sink_id */);
  }

  FakeRenderWidgetHostViewAura* CreateView(bool is_guest_view_hack) {
    int32_t routing_id = process_host_->GetNextRoutingID();
    delegates_.push_back(base::WrapUnique(new MockRenderWidgetHostDelegate));
    auto* widget_host = MockRenderWidgetHostImpl::Create(
        delegates_.back().get(), process_host_, routing_id);
    delegates_.back()->set_widget_host(widget_host);
    widget_host->Init();
    return new FakeRenderWidgetHostViewAura(widget_host, is_guest_view_hack);
  }

  void DestroyView(FakeRenderWidgetHostViewAura* view) {
    // For guest-views, |view_| is not the view used by |widget_host_|.
    bool is_guest_view_hack = view->is_guest_view_hack();
    RenderWidgetHostImpl* host = view->host();
    if (!is_guest_view_hack)
      EXPECT_EQ(view, host->GetView());
    view->Destroy();
    if (!is_guest_view_hack)
      EXPECT_EQ(nullptr, host->GetView());

    if (widget_host_uses_shutdown_to_destroy_)
      host->ShutdownAndDestroyWidget(true);
    else
      delete host;
  }

  void SetUpEnvironment() {
    ImageTransportFactory::SetFactory(
        std::make_unique<TestImageTransportFactory>());
    aura_test_helper_.reset(new aura::test::AuraTestHelper());
    aura_test_helper_->SetUp(
        ImageTransportFactory::GetInstance()->GetContextFactory(),
        ImageTransportFactory::GetInstance()->GetContextFactoryPrivate());
    new wm::DefaultActivationClient(aura_test_helper_->root_window());

    browser_context_.reset(new TestBrowserContext);
    process_host_ = new MockRenderProcessHost(browser_context_.get());
    process_host_->Init();

    sink_ = &process_host_->sink();

    int32_t routing_id = process_host_->GetNextRoutingID();
    delegates_.push_back(base::WrapUnique(new MockRenderWidgetHostDelegate));
    parent_host_ = MockRenderWidgetHostImpl::Create(delegates_.back().get(),
                                                    process_host_, routing_id);
    delegates_.back()->set_widget_host(parent_host_);
    const bool is_mus_browser_plugin_guest = false;
    parent_view_ = new RenderWidgetHostViewAura(
        parent_host_, is_guest_view_hack_, is_mus_browser_plugin_guest);
    parent_view_->InitAsChild(nullptr);
    aura::client::ParentWindowWithContext(parent_view_->GetNativeView(),
                                          aura_test_helper_->root_window(),
                                          gfx::Rect());
    view_ = CreateView(is_guest_view_hack_);
    widget_host_ = static_cast<MockRenderWidgetHostImpl*>(view_->host());
    // Set the mouse_wheel_phase_handler_ timer timeout to 100ms.
    view_->event_handler()->set_mouse_wheel_wheel_phase_handler_timeout(
        base::TimeDelta::FromMilliseconds(100));
    base::RunLoop().RunUntilIdle();
  }

  void TearDownEnvironment() {
    sink_ = nullptr;
    process_host_ = nullptr;
    if (view_)
      DestroyView(view_);

    parent_view_->Destroy();
    delete parent_host_;

    browser_context_.reset();
    aura_test_helper_->TearDown();

    base::RunLoop().RunUntilIdle();
    ImageTransportFactory::Terminate();
  }

  void SetUp() override {
    SetUpEnvironment();
  }

  void TearDown() override { TearDownEnvironment(); }

  void set_widget_host_uses_shutdown_to_destroy(bool use) {
    widget_host_uses_shutdown_to_destroy_ = use;
  }

  void SimulateMemoryPressure(
      base::MemoryPressureListener::MemoryPressureLevel level) {
    // Here should be base::MemoryPressureListener::NotifyMemoryPressure, but
    // since the FrameEvictionManager is installing a MemoryPressureListener
    // which uses base::ObserverListThreadSafe, which furthermore remembers the
    // message loop for the thread it was created in. Between tests, the
    // FrameEvictionManager singleton survives and and the MessageLoop gets
    // destroyed. The correct fix would be to have base::ObserverListThreadSafe
    // look
    // up the proper message loop every time (see crbug.com/443824.)
    FrameEvictionManager::GetInstance()->OnMemoryPressure(level);
  }

  MockWidgetInputHandler::MessageVector GetAndResetDispatchedMessages() {
    return widget_host_->input_handler()->GetAndResetDispatchedMessages();
  }

  void SendNotConsumedAcks(MockWidgetInputHandler::MessageVector& events) {
    events.clear();
  }

  const ui::MotionEventAura& pointer_state() { return view_->pointer_state(); }

 protected:
  BrowserContext* browser_context() { return browser_context_.get(); }

  MockRenderWidgetHostDelegate* render_widget_host_delegate() const {
    return delegates_.back().get();
  }

  MouseWheelPhaseHandler* GetMouseWheelPhaseHandler() const {
    return view_->GetMouseWheelPhaseHandler();
  }

  // Sets the |view| active in TextInputManager with the given |type|. |type|
  // cannot be ui::TEXT_INPUT_TYPE_NONE.
  // Must not be called in the destruction path of |view|.
  void ActivateViewForTextInputManager(RenderWidgetHostViewBase* view,
                                       ui::TextInputType type) {
    DCHECK_NE(ui::TEXT_INPUT_TYPE_NONE, type);
    // First mock-focus the widget if not already.
    if (render_widget_host_delegate()->GetFocusedRenderWidgetHost(
            widget_host_) != view->GetRenderWidgetHost()) {
      render_widget_host_delegate()->set_focused_widget(view->host());
    }

    TextInputManager* manager =
        static_cast<RenderWidgetHostImpl*>(view->GetRenderWidgetHost())
            ->delegate()
            ->GetTextInputManager();
    if (manager->GetActiveWidget()) {
      manager->active_view_for_testing()->TextInputStateChanged(
          TextInputState());
    }

    if (!view)
      return;

    TextInputState state_with_type_text;
    state_with_type_text.type = type;
    view->TextInputStateChanged(state_with_type_text);
  }

  // If true, then calls RWH::Shutdown() instead of deleting RWH.
  bool widget_host_uses_shutdown_to_destroy_;

  bool is_guest_view_hack_;

  TestBrowserThreadBundle thread_bundle_;
  std::unique_ptr<aura::test::AuraTestHelper> aura_test_helper_;
  std::unique_ptr<BrowserContext> browser_context_;
  std::vector<std::unique_ptr<MockRenderWidgetHostDelegate>> delegates_;
  MockRenderProcessHost* process_host_;

  // Tests should set these to nullptr if they've already triggered their
  // destruction.
  RenderWidgetHostImpl* parent_host_;
  RenderWidgetHostViewAura* parent_view_;

  // Tests should set these to nullptr if they've already triggered their
  // destruction.
  MockRenderWidgetHostImpl* widget_host_;
  FakeRenderWidgetHostViewAura* view_;

  IPC::TestSink* sink_;
  base::test::ScopedFeatureList mojo_feature_list_;
  base::test::ScopedFeatureList feature_list_;

  viz::ParentLocalSurfaceIdAllocator parent_local_surface_id_allocator_;

 private:
  DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewAuraTest);
};

class RenderWidgetHostViewAuraSurfaceSynchronizationTest
    : public RenderWidgetHostViewAuraTest {
  void SetUp() override {
    surface_synchronization_feature_list_.InitAndEnableFeature(
        features::kEnableSurfaceSynchronization);
    SetUpEnvironment();
  }

 private:
  base::test::ScopedFeatureList surface_synchronization_feature_list_;
};

void InstallDelegatedFrameHostClient(
    RenderWidgetHostViewAura* render_widget_host_view,
    std::unique_ptr<DelegatedFrameHostClient> delegated_frame_host_client) {
  RenderWidgetHostViewAuraTest::InstallDelegatedFrameHostClient(
      render_widget_host_view, std::move(delegated_frame_host_client));
}

// Helper class to instantiate RenderWidgetHostViewGuest which is backed
// by an aura platform view.
class RenderWidgetHostViewGuestAuraTest : public RenderWidgetHostViewAuraTest {
 public:
  RenderWidgetHostViewGuestAuraTest() {
    // Use RWH::Shutdown to destroy RWH, instead of deleting.
    // This will ensure that the RenderWidgetHostViewGuest is not leaked and
    // is deleted properly upon RWH going away.
    set_widget_host_uses_shutdown_to_destroy(true);
  }

  // We explicitly invoke SetUp to allow gesture debounce customization.
  void SetUp() override {
    is_guest_view_hack_ = true;

    RenderWidgetHostViewAuraTest::SetUp();

    guest_view_weak_ = (RenderWidgetHostViewGuest::Create(widget_host_, nullptr,
                                                          view_->GetWeakPtr()))
                           ->GetWeakPtr();
  }

  void TearDown() override {
    // Internal override to do nothing, we clean up ourselves in the test body.
    // This helps us test that |guest_view_weak_| does not leak.
  }

 protected:
  base::WeakPtr<RenderWidgetHostViewBase> guest_view_weak_;

 private:

  DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewGuestAuraTest);
};

// TODO(mohsen): Consider moving these tests to OverscrollControllerTest if
// appropriate.
class RenderWidgetHostViewAuraOverscrollTest
    : public RenderWidgetHostViewAuraTest {
 public:
  RenderWidgetHostViewAuraOverscrollTest() : RenderWidgetHostViewAuraTest() {}

  // We explicitly invoke SetUp to allow gesture debounce customization.
  void SetUp() override {}

  void SendScrollUpdateAck(MockWidgetInputHandler::MessageVector& messages,
                           InputEventAckState ack_result) {
    for (size_t i = 0; i < messages.size(); ++i) {
      MockWidgetInputHandler::DispatchedEventMessage* event =
          messages[i]->ToEvent();
      if (event &&
          event->Event()->web_event->GetType() ==
              WebInputEvent::kGestureScrollUpdate &&
          event->HasCallback()) {
        event->CallCallback(ack_result);
        return;
      }
    }
    EXPECT_TRUE(false);
  }

  void SendScrollBeginAckIfNeeded(
      MockWidgetInputHandler::MessageVector& messages,
      InputEventAckState ack_result) {
    for (size_t i = 0; i < messages.size(); ++i) {
      MockWidgetInputHandler::DispatchedEventMessage* event =
          messages[i]->ToEvent();
      // GSB events are blocking, send the ack.
      if (event && event->Event()->web_event->GetType() ==
                       WebInputEvent::kGestureScrollBegin) {
        event->CallCallback(ack_result);
        return;
      }
    }
  }

  void SendScrollBeginAckIfNeeded(InputEventAckState ack_result) {
    MockWidgetInputHandler::MessageVector events =
        GetAndResetDispatchedMessages();
    SendScrollBeginAckIfNeeded(events, ack_result);
  }

 protected:
  void SetUpOverscrollEnvironmentWithDebounce(int debounce_interval_in_ms) {
    SetUpOverscrollEnvironmentImpl(debounce_interval_in_ms);
  }

  void SetUpOverscrollEnvironment() { SetUpOverscrollEnvironmentImpl(0); }

  void SetUpOverscrollEnvironmentImpl(int debounce_interval_in_ms) {
    scoped_feature_list_.InitAndEnableFeature(
        features::kTouchpadOverscrollHistoryNavigation);

    ui::GestureConfiguration::GetInstance()->set_scroll_debounce_interval_in_ms(
        debounce_interval_in_ms);

    RenderWidgetHostViewAuraTest::SetUpEnvironment();

    view_->SetOverscrollControllerEnabled(true);
    gfx::Size display_size = display::Screen::GetScreen()
                                 ->GetDisplayNearestView(view_->GetNativeView())
                                 .size();
    overscroll_delegate_.reset(new TestOverscrollDelegate(display_size));
    view_->overscroll_controller()->set_delegate(overscroll_delegate_.get());

    view_->InitAsChild(nullptr);
    view_->SetBounds(gfx::Rect(0, 0, 400, 200));
    view_->Show();

    sink_->ClearMessages();
  }

  // TODO(jdduke): Simulate ui::Events, injecting through the view.
  void SimulateMouseEvent(WebInputEvent::Type type) {
    widget_host_->ForwardMouseEvent(SyntheticWebMouseEventBuilder::Build(type));
    base::RunLoop().RunUntilIdle();
  }

  void SimulateMouseEventWithLatencyInfo(WebInputEvent::Type type,
                                         const ui::LatencyInfo& ui_latency) {
    widget_host_->ForwardMouseEventWithLatencyInfo(
        SyntheticWebMouseEventBuilder::Build(type), ui_latency);
    base::RunLoop().RunUntilIdle();
  }

  void SimulateWheelEvent(float dX,
                          float dY,
                          int modifiers,
                          bool precise,
                          WebMouseWheelEvent::Phase phase) {
    WebMouseWheelEvent wheel_event = SyntheticWebMouseWheelEventBuilder::Build(
        0, 0, dX, dY, modifiers, precise);
    wheel_event.phase = phase;
    widget_host_->ForwardWheelEvent(wheel_event);
    base::RunLoop().RunUntilIdle();
  }

  void SimulateMouseMove(int x, int y, int modifiers) {
    SimulateMouseEvent(WebInputEvent::kMouseMove, x, y, modifiers, false);
  }

  void SimulateMouseEvent(WebInputEvent::Type type,
                          int x,
                          int y,
                          int modifiers,
                          bool pressed) {
    WebMouseEvent event =
        SyntheticWebMouseEventBuilder::Build(type, x, y, modifiers);
    if (pressed)
      event.button = WebMouseEvent::Button::kLeft;
    widget_host_->ForwardMouseEvent(event);
    base::RunLoop().RunUntilIdle();
  }

  // Inject provided synthetic WebGestureEvent instance.
  void SimulateGestureEventCore(const WebGestureEvent& gesture_event) {
    widget_host_->ForwardGestureEvent(gesture_event);
    base::RunLoop().RunUntilIdle();
  }

  void SimulateGestureEventCoreWithLatencyInfo(
      const WebGestureEvent& gesture_event,
      const ui::LatencyInfo& ui_latency) {
    widget_host_->ForwardGestureEventWithLatencyInfo(gesture_event, ui_latency);
    base::RunLoop().RunUntilIdle();
  }

  // Inject simple synthetic WebGestureEvent instances.
  void SimulateGestureEvent(WebInputEvent::Type type,
                            blink::WebGestureDevice sourceDevice) {
    SimulateGestureEventCore(
        SyntheticWebGestureEventBuilder::Build(type, sourceDevice));
  }

  void SimulateGestureEventWithLatencyInfo(WebInputEvent::Type type,
                                           blink::WebGestureDevice sourceDevice,
                                           const ui::LatencyInfo& ui_latency) {
    SimulateGestureEventCoreWithLatencyInfo(
        SyntheticWebGestureEventBuilder::Build(type, sourceDevice), ui_latency);
  }

  void SimulateGestureScrollUpdateEvent(float dX, float dY, int modifiers) {
    SimulateGestureEventCore(SyntheticWebGestureEventBuilder::BuildScrollUpdate(
        dX, dY, modifiers, blink::kWebGestureDeviceTouchscreen));
  }

  void SimulateGesturePinchUpdateEvent(float scale,
                                       float anchorX,
                                       float anchorY,
                                       int modifiers) {
    SimulateGestureEventCore(SyntheticWebGestureEventBuilder::BuildPinchUpdate(
        scale, anchorX, anchorY, modifiers,
        blink::kWebGestureDeviceTouchscreen));
  }

  // Inject synthetic GestureFlingStart events.
  void SimulateGestureFlingStartEvent(float velocityX,
                                      float velocityY,
                                      blink::WebGestureDevice sourceDevice) {
    SimulateGestureEventCore(SyntheticWebGestureEventBuilder::BuildFling(
        velocityX, velocityY, sourceDevice));
  }

  bool ScrollStateIsContentConsuming() const {
    return scroll_state() ==
           OverscrollController::ScrollState::CONTENT_CONSUMING;
  }

  bool ScrollStateIsOverscrolling() const {
    return scroll_state() == OverscrollController::ScrollState::OVERSCROLLING;
  }

  bool ScrollStateIsUnknown() const {
    return scroll_state() == OverscrollController::ScrollState::NONE;
  }

  OverscrollController::ScrollState scroll_state() const {
    return view_->overscroll_controller()->scroll_state_;
  }

  OverscrollMode overscroll_mode() const {
    return view_->overscroll_controller()->overscroll_mode_;
  }

  OverscrollSource overscroll_source() const {
    return view_->overscroll_controller()->overscroll_source_;
  }

  float overscroll_delta_x() const {
    return view_->overscroll_controller()->overscroll_delta_x_;
  }

  float overscroll_delta_y() const {
    return view_->overscroll_controller()->overscroll_delta_y_;
  }

  TestOverscrollDelegate* overscroll_delegate() {
    return overscroll_delegate_.get();
  }

  uint32_t SendTouchEvent() {
    uint32_t touch_event_id = touch_event_.unique_touch_event_id;
    widget_host_->ForwardTouchEventWithLatencyInfo(touch_event_,
                                                   ui::LatencyInfo());
    touch_event_.ResetPoints();
    base::RunLoop().RunUntilIdle();
    return touch_event_id;
  }

  void PressTouchPoint(int x, int y) {
    touch_event_.PressPoint(x, y);
  }

  void MoveTouchPoint(int index, int x, int y) {
    touch_event_.MovePoint(index, x, y);
  }

  void ReleaseTouchPoint(int index) {
    touch_event_.ReleasePoint(index);
  }

  void PressAndSetTouchActionAuto() {
    PressTouchPoint(0, 1);
    SendTouchEvent();
    widget_host_->input_router()->OnSetTouchAction(cc::kTouchActionAuto);
    MockWidgetInputHandler::MessageVector events =
        GetAndResetDispatchedMessages();
    EXPECT_EQ("TouchStart", GetMessageNames(events));
  }

  void ReleaseAndResetDispatchedMessages() {
    ReleaseTouchPoint(0);
    SendTouchEvent();
    MockWidgetInputHandler::MessageVector events =
        GetAndResetDispatchedMessages();
  }

  MockWidgetInputHandler::MessageVector ExpectGestureScrollEndForWheelScrolling(
      bool is_last) {
    MockWidgetInputHandler::MessageVector events =
        GetAndResetDispatchedMessages();
    if (is_last) {
      // Scroll latching will have one GestureScrollEnd at the end.
      EXPECT_EQ("GestureScrollEnd", GetMessageNames(events));
      return events;
    }
    // No GestureScrollEnd during the scroll.
    EXPECT_EQ(0U, events.size());
    return events;
  }

  MockWidgetInputHandler::MessageVector
  ExpectGestureScrollEventsAfterMouseWheelACK(
      bool is_first_ack,
      size_t enqueued_wheel_event_count) {
    MockWidgetInputHandler::MessageVector events =
        GetAndResetDispatchedMessages();
    std::string expected_events;
      // If the ack for the first sent event is not consumed,
      // MouseWheelEventQueue(MWEQ) sends the rest of the wheel events in the
      // current scrolling sequence as non-blocking events. Since MWEQ
      // receives the ack for non-blocking events asynchronously, it sends the
      // next queued wheel event immediately and this continues till the queue
      // is empty.
      // Expecting a GSB+GSU for ACKing the first MouseWheel, plus an additional
      // MouseWheel+GSU per enqueued wheel event. Note that GestureEventQueue
      // allows multiple in-flight events.
      if (is_first_ack)
        expected_events += "GestureScrollBegin GestureScrollUpdate ";
      for (size_t i = 0; i < enqueued_wheel_event_count; ++i)
        expected_events += "MouseWheel GestureScrollUpdate ";

    EXPECT_EQ(base::TrimWhitespaceASCII(expected_events, base::TRIM_TRAILING),
              GetMessageNames(events));
    return events;
  }

  MockWidgetInputHandler::MessageVector
  ExpectGestureScrollUpdateAfterNonBlockingMouseWheelACK(
      bool wheel_was_queued) {
    MockWidgetInputHandler::MessageVector events =
        GetAndResetDispatchedMessages();
    size_t gesture_scroll_update_index;
    if (wheel_was_queued) {
      // The queued wheel event is already sent.
      gesture_scroll_update_index = 0;
    } else {
      // The first sent must be the wheel event and the second one must be
      // GestureScrollUpdate since the ack for the wheel event is non-blocking.
      EXPECT_TRUE(events[0]->ToEvent());
      EXPECT_EQ(WebInputEvent::kMouseWheel,
                events[0]->ToEvent()->Event()->web_event->GetType());
      gesture_scroll_update_index = 1;
    }
    EXPECT_EQ(gesture_scroll_update_index + 1, events.size());
    EXPECT_TRUE(events[gesture_scroll_update_index]->ToEvent());
    EXPECT_EQ(WebInputEvent::kGestureScrollUpdate,
              events[gesture_scroll_update_index]
                  ->ToEvent()
                  ->Event()
                  ->web_event->GetType());
    return events;
  }

  SyntheticWebTouchEvent touch_event_;

  std::unique_ptr<TestOverscrollDelegate> overscroll_delegate_;

 private:
  base::test::ScopedFeatureList scoped_feature_list_;

  DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewAuraOverscrollTest);
};

class RenderWidgetHostViewAuraShutdownTest
    : public RenderWidgetHostViewAuraTest {
 public:
  RenderWidgetHostViewAuraShutdownTest() {}

  void TearDown() override {
    // No TearDownEnvironment here, we do this explicitly during the test.
  }

 private:
  DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewAuraShutdownTest);
};

// Checks that RenderWidgetHostViewAura can be destroyed before it is properly
// initialized.
TEST_F(RenderWidgetHostViewAuraTest, DestructionBeforeProperInitialization) {
  // Terminate the test without initializing |view_|.
}

// Checks that a fullscreen view has the correct show-state and receives the
// focus.
TEST_F(RenderWidgetHostViewAuraTest, FocusFullscreen) {
  view_->InitAsFullscreen(parent_view_);
  aura::Window* window = view_->GetNativeView();
  ASSERT_TRUE(window != nullptr);
  EXPECT_EQ(ui::SHOW_STATE_FULLSCREEN,
            window->GetProperty(aura::client::kShowStateKey));

  // Check that we requested and received the focus.
  EXPECT_TRUE(window->HasFocus());

  // Check that we'll also say it's okay to activate the window when there's an
  // ActivationClient defined.
  EXPECT_TRUE(view_->ShouldActivate());
}

// Checks that a popup is positioned correctly relative to its parent using
// screen coordinates.
TEST_F(RenderWidgetHostViewAuraTest, PositionChildPopup) {
  wm::DefaultScreenPositionClient screen_position_client;

  aura::Window* window = parent_view_->GetNativeView();
  aura::Window* root = window->GetRootWindow();
  aura::client::SetScreenPositionClient(root, &screen_position_client);

  parent_view_->SetBounds(gfx::Rect(10, 10, 800, 600));
  gfx::Rect bounds_in_screen = parent_view_->GetViewBounds();
  int horiz = bounds_in_screen.width() / 4;
  int vert = bounds_in_screen.height() / 4;
  bounds_in_screen.Inset(horiz, vert);

  // Verify that when the popup is initialized for the first time, it correctly
  // treats the input bounds as screen coordinates.
  view_->SetWidgetType(WidgetType::kPopup);
  view_->InitAsPopup(parent_view_, bounds_in_screen);

  gfx::Rect final_bounds_in_screen = view_->GetViewBounds();
  EXPECT_EQ(final_bounds_in_screen.ToString(), bounds_in_screen.ToString());

  // Verify that directly setting the bounds via SetBounds() treats the input
  // as screen coordinates.
  bounds_in_screen = gfx::Rect(60, 60, 100, 100);
  view_->SetBounds(bounds_in_screen);
  final_bounds_in_screen = view_->GetViewBounds();
  EXPECT_EQ(final_bounds_in_screen.ToString(), bounds_in_screen.ToString());

  // Verify that setting the size does not alter the origin.
  gfx::Point original_origin = window->bounds().origin();
  view_->SetSize(gfx::Size(120, 120));
  gfx::Point new_origin = window->bounds().origin();
  EXPECT_EQ(original_origin.ToString(), new_origin.ToString());

  aura::client::SetScreenPositionClient(root, nullptr);
}

// Checks that moving parent sends new screen bounds.
TEST_F(RenderWidgetHostViewAuraTest, ParentMovementUpdatesScreenRect) {
  view_->InitAsChild(nullptr);

  aura::Window* root = parent_view_->GetNativeView()->GetRootWindow();

  aura::test::TestWindowDelegate delegate1, delegate2;
  std::unique_ptr<aura::Window> parent1(new aura::Window(&delegate1));
  parent1->Init(ui::LAYER_TEXTURED);
  parent1->Show();
  std::unique_ptr<aura::Window> parent2(new aura::Window(&delegate2));
  parent2->Init(ui::LAYER_TEXTURED);
  parent2->Show();

  root->AddChild(parent1.get());
  parent1->AddChild(parent2.get());
  parent2->AddChild(view_->GetNativeView());

  root->SetBounds(gfx::Rect(0, 0, 800, 600));
  parent1->SetBounds(gfx::Rect(1, 1, 300, 300));
  parent2->SetBounds(gfx::Rect(2, 2, 200, 200));
  view_->SetBounds(gfx::Rect(3, 3, 100, 100));
  // view_ will be destroyed when parent is destroyed.
  view_ = nullptr;

  // Flush the state after initial setup is done.
  widget_host_->OnMessageReceived(
      WidgetHostMsg_UpdateScreenRects_ACK(widget_host_->GetRoutingID()));
  widget_host_->OnMessageReceived(
      WidgetHostMsg_UpdateScreenRects_ACK(widget_host_->GetRoutingID()));
  sink_->ClearMessages();

  // Move parents.
  parent2->SetBounds(gfx::Rect(20, 20, 200, 200));
  ASSERT_EQ(1U, sink_->message_count());
  const IPC::Message* msg = sink_->GetMessageAt(0);
  ASSERT_EQ(static_cast<uint32_t>(WidgetMsg_UpdateScreenRects::ID),
            msg->type());
  WidgetMsg_UpdateScreenRects::Param params;
  WidgetMsg_UpdateScreenRects::Read(msg, &params);
  EXPECT_EQ(gfx::Rect(24, 24, 100, 100), std::get<0>(params));
  EXPECT_EQ(gfx::Rect(1, 1, 300, 300), std::get<1>(params));
  sink_->ClearMessages();
  widget_host_->OnMessageReceived(
      WidgetHostMsg_UpdateScreenRects_ACK(widget_host_->GetRoutingID()));
  // There should not be any pending update.
  EXPECT_EQ(0U, sink_->message_count());

  parent1->SetBounds(gfx::Rect(10, 10, 300, 300));
  ASSERT_EQ(1U, sink_->message_count());
  msg = sink_->GetMessageAt(0);
  ASSERT_EQ(static_cast<uint32_t>(WidgetMsg_UpdateScreenRects::ID),
            msg->type());
  WidgetMsg_UpdateScreenRects::Read(msg, &params);
  EXPECT_EQ(gfx::Rect(33, 33, 100, 100), std::get<0>(params));
  EXPECT_EQ(gfx::Rect(10, 10, 300, 300), std::get<1>(params));
  sink_->ClearMessages();
  widget_host_->OnMessageReceived(
      WidgetHostMsg_UpdateScreenRects_ACK(widget_host_->GetRoutingID()));
  // There should not be any pending update.
  EXPECT_EQ(0U, sink_->message_count());
}

// Checks that a fullscreen view is destroyed when it loses the focus.
TEST_F(RenderWidgetHostViewAuraTest, DestroyFullscreenOnBlur) {
  view_->InitAsFullscreen(parent_view_);
  aura::Window* window = view_->GetNativeView();
  ASSERT_TRUE(window != nullptr);
  ASSERT_TRUE(window->HasFocus());

  // After we create and focus another window, the RWHVA's window should be
  // destroyed.
  TestWindowObserver observer(window);
  aura::test::TestWindowDelegate delegate;
  std::unique_ptr<aura::Window> sibling(new aura::Window(&delegate));
  sibling->Init(ui::LAYER_TEXTURED);
  sibling->Show();
  window->parent()->AddChild(sibling.get());
  sibling->Focus();
  ASSERT_TRUE(sibling->HasFocus());
  ASSERT_TRUE(observer.destroyed());

  widget_host_ = nullptr;
  view_ = nullptr;
}

#if defined(OS_CHROMEOS)
// Checks that a popup view is destroyed when a user clicks outside of the popup
// view and focus does not change. This is the case when the user clicks on the
// desktop background on Chrome OS.
TEST_F(RenderWidgetHostViewAuraTest, DestroyPopupClickOutsidePopup) {
  parent_view_->SetBounds(gfx::Rect(10, 10, 400, 400));
  parent_view_->Focus();
  EXPECT_TRUE(parent_view_->HasFocus());

  view_->SetWidgetType(WidgetType::kPopup);
  view_->InitAsPopup(parent_view_, gfx::Rect(10, 10, 100, 100));
  aura::Window* window = view_->GetNativeView();
  ASSERT_TRUE(window != nullptr);

  gfx::Point click_point(0, 0);
  EXPECT_FALSE(window->GetBoundsInRootWindow().Contains(click_point));
  aura::Window* parent_window = parent_view_->GetNativeView();
  EXPECT_FALSE(parent_window->GetBoundsInRootWindow().Contains(click_point));

  TestWindowObserver observer(window);
  ui::test::EventGenerator generator(window->GetRootWindow(), click_point);
  generator.ClickLeftButton();
  ASSERT_TRUE(parent_view_->HasFocus());
  ASSERT_TRUE(observer.destroyed());

  widget_host_ = nullptr;
  view_ = nullptr;
}

// Checks that a popup view is destroyed when a user taps outside of the popup
// view and focus does not change. This is the case when the user taps the
// desktop background on Chrome OS.
TEST_F(RenderWidgetHostViewAuraTest, DestroyPopupTapOutsidePopup) {
  parent_view_->SetBounds(gfx::Rect(10, 10, 400, 400));
  parent_view_->Focus();
  EXPECT_TRUE(parent_view_->HasFocus());

  view_->SetWidgetType(WidgetType::kPopup);
  view_->InitAsPopup(parent_view_, gfx::Rect(10, 10, 100, 100));
  aura::Window* window = view_->GetNativeView();
  ASSERT_TRUE(window != nullptr);

  gfx::Point tap_point(0, 0);
  EXPECT_FALSE(window->GetBoundsInRootWindow().Contains(tap_point));
  aura::Window* parent_window = parent_view_->GetNativeView();
  EXPECT_FALSE(parent_window->GetBoundsInRootWindow().Contains(tap_point));

  TestWindowObserver observer(window);
  ui::test::EventGenerator generator(window->GetRootWindow(), tap_point);
  generator.GestureTapAt(tap_point);
  ASSERT_TRUE(parent_view_->HasFocus());
  ASSERT_TRUE(observer.destroyed());

  widget_host_ = nullptr;
  view_ = nullptr;
}
#endif

#if defined(OS_LINUX) && !defined(OS_CHROMEOS)
// On Desktop Linux, select boxes need mouse capture in order to work. Test that
// when a select box is opened via a mouse press that it retains mouse capture
// after the mouse is released.
TEST_F(RenderWidgetHostViewAuraTest, PopupRetainsCaptureAfterMouseRelease) {
  parent_view_->SetBounds(gfx::Rect(10, 10, 400, 400));
  parent_view_->Focus();
  EXPECT_TRUE(parent_view_->HasFocus());

  ui::test::EventGenerator generator(
      parent_view_->GetNativeView()->GetRootWindow(), gfx::Point(300, 300));
  generator.PressLeftButton();

  view_->SetWidgetType(WidgetType::kPopup);
  view_->InitAsPopup(parent_view_, gfx::Rect(10, 10, 100, 100));
  ASSERT_TRUE(view_->NeedsMouseCapture());
  aura::Window* window = view_->GetNativeView();
  EXPECT_TRUE(window->HasCapture());

  generator.ReleaseLeftButton();
  EXPECT_TRUE(window->HasCapture());
}
#endif

// Test that select boxes close when their parent window loses focus (e.g. due
// to an alert or system modal dialog).
TEST_F(RenderWidgetHostViewAuraTest, PopupClosesWhenParentLosesFocus) {
  parent_view_->SetBounds(gfx::Rect(10, 10, 400, 400));
  parent_view_->Focus();
  EXPECT_TRUE(parent_view_->HasFocus());

  view_->SetWidgetType(WidgetType::kPopup);
  view_->InitAsPopup(parent_view_, gfx::Rect(10, 10, 100, 100));

  aura::Window* popup_window = view_->GetNativeView();
  TestWindowObserver observer(popup_window);

  aura::test::TestWindowDelegate delegate;
  std::unique_ptr<aura::Window> dialog_window(new aura::Window(&delegate));
  dialog_window->Init(ui::LAYER_TEXTURED);
  aura::client::ParentWindowWithContext(
      dialog_window.get(), popup_window, gfx::Rect());
  dialog_window->Show();
  wm::ActivateWindow(dialog_window.get());
  dialog_window->Focus();

  ASSERT_TRUE(wm::IsActiveWindow(dialog_window.get()));
  EXPECT_TRUE(observer.destroyed());

  widget_host_ = nullptr;
  view_ = nullptr;
}

// Checks that IME-composition-event state is maintained correctly.
TEST_F(RenderWidgetHostViewAuraTest, SetCompositionText) {
  view_->InitAsChild(nullptr);
  view_->Show();
  ActivateViewForTextInputManager(view_, ui::TEXT_INPUT_TYPE_TEXT);

  ui::CompositionText composition_text;
  composition_text.text = base::ASCIIToUTF16("|a|b");

  // Focused segment
  composition_text.ime_text_spans.push_back(
      ui::ImeTextSpan(ui::ImeTextSpan::Type::kComposition, 0, 3,
                      ui::ImeTextSpan::Thickness::kThick, 0x78563412));

  // Non-focused segment, with different background color.
  composition_text.ime_text_spans.push_back(
      ui::ImeTextSpan(ui::ImeTextSpan::Type::kComposition, 3, 4,
                      ui::ImeTextSpan::Thickness::kThin, 0xefcdab90));

  const ui::ImeTextSpans& ime_text_spans = composition_text.ime_text_spans;

  // Caret is at the end. (This emulates Japanese MSIME 2007 and later)
  composition_text.selection = gfx::Range(4);

  view_->SetCompositionText(composition_text);
  EXPECT_TRUE(view_->has_composition_text_);
  base::RunLoop().RunUntilIdle();
  MockWidgetInputHandler::MessageVector events =
      GetAndResetDispatchedMessages();
  EXPECT_EQ("SetComposition", GetMessageNames(events));

  MockWidgetInputHandler::DispatchedIMEMessage* ime_message =
      events[0]->ToIME();
  EXPECT_TRUE(ime_message);
  EXPECT_TRUE(ime_message->Matches(composition_text.text, ime_text_spans,
                                   gfx::Range::InvalidRange(), 4, 4));

  view_->ImeCancelComposition();
  EXPECT_FALSE(view_->has_composition_text_);
}

// Checks that we reset has_composition_text_ to false upon when the focused
// node is changed.
TEST_F(RenderWidgetHostViewAuraTest, FocusedNodeChanged) {
  view_->InitAsChild(nullptr);
  view_->Show();
  ActivateViewForTextInputManager(view_, ui::TEXT_INPUT_TYPE_TEXT);

  ui::CompositionText composition_text;
  composition_text.text = base::ASCIIToUTF16("hello");
  view_->SetCompositionText(composition_text);
  EXPECT_TRUE(view_->has_composition_text_);

  view_->FocusedNodeChanged(true, gfx::Rect());
  EXPECT_FALSE(view_->has_composition_text_);
}

// Checks that sequence of IME-composition-event and mouse-event when mouse
// clicking to cancel the composition.
TEST_F(RenderWidgetHostViewAuraTest, FinishCompositionByMouse) {
  view_->InitAsChild(nullptr);
  view_->Show();
  ActivateViewForTextInputManager(view_, ui::TEXT_INPUT_TYPE_TEXT);

  ui::CompositionText composition_text;
  composition_text.text = base::ASCIIToUTF16("|a|b");

  // Focused segment
  composition_text.ime_text_spans.push_back(
      ui::ImeTextSpan(ui::ImeTextSpan::Type::kComposition, 0, 3,
                      ui::ImeTextSpan::Thickness::kThick, 0x78563412));

  // Non-focused segment, with different background color.
  composition_text.ime_text_spans.push_back(
      ui::ImeTextSpan(ui::ImeTextSpan::Type::kComposition, 3, 4,
                      ui::ImeTextSpan::Thickness::kThin, 0xefcdab90));

  // Caret is at the end. (This emulates Japanese MSIME 2007 and later)
  composition_text.selection = gfx::Range(4);

  view_->SetCompositionText(composition_text);
  EXPECT_TRUE(view_->has_composition_text_);
  base::RunLoop().RunUntilIdle();
  EXPECT_EQ("SetComposition", GetMessageNames(GetAndResetDispatchedMessages()));

  // Simulates the mouse press.
  ui::MouseEvent mouse_event(ui::ET_MOUSE_PRESSED, gfx::Point(), gfx::Point(),
                             ui::EventTimeForNow(), ui::EF_LEFT_MOUSE_BUTTON,
                             0);
  view_->OnMouseEvent(&mouse_event);
  base::RunLoop().RunUntilIdle();

  EXPECT_FALSE(view_->has_composition_text_);

  EXPECT_EQ("FinishComposingText MouseDown",
            GetMessageNames(GetAndResetDispatchedMessages()));
}

// Checks that WasOcculded/WasUnOccluded notifies RenderWidgetHostImpl.
TEST_F(RenderWidgetHostViewAuraTest, WasOccluded) {
  view_->InitAsChild(nullptr);
  view_->Show();
  EXPECT_FALSE(widget_host_->is_hidden());

  // Verifies WasOccluded sets RenderWidgetHostImpl as hidden and WasUnOccluded
  // resets the state.
  view_->WasOccluded();
  EXPECT_TRUE(widget_host_->is_hidden());
  view_->WasUnOccluded();
  EXPECT_FALSE(widget_host_->is_hidden());

  // Verifies WasOccluded sets RenderWidgetHostImpl as hidden and Show resets
  // the state.
  view_->WasOccluded();
  EXPECT_TRUE(widget_host_->is_hidden());
  view_->Show();
  EXPECT_FALSE(widget_host_->is_hidden());

  // WasOccluded and WasUnOccluded are not in pairs. The last one dictates
  // the final state.
  for (int i = 0; i < 2; ++i) {
    view_->WasOccluded();
    EXPECT_TRUE(widget_host_->is_hidden());
  }
  view_->WasUnOccluded();
  EXPECT_FALSE(widget_host_->is_hidden());

  for (int i = 0; i < 4; ++i) {
    view_->WasUnOccluded();
    EXPECT_FALSE(widget_host_->is_hidden());
  }
  view_->WasOccluded();
  EXPECT_TRUE(widget_host_->is_hidden());
}

// Checks that touch-event state is maintained correctly.
TEST_F(RenderWidgetHostViewAuraTest, TouchEventState) {
  view_->InitAsChild(nullptr);
  view_->Show();

  // Start with no touch-event handler in the renderer.
  widget_host_->OnMessageReceived(
      WidgetHostMsg_HasTouchEventHandlers(0, false));

  ui::TouchEvent press(
      ui::ET_TOUCH_PRESSED, gfx::Point(30, 30), ui::EventTimeForNow(),
      ui::PointerDetails(ui::EventPointerType::POINTER_TYPE_TOUCH, 0));
  ui::TouchEvent move(
      ui::ET_TOUCH_MOVED, gfx::Point(20, 20), ui::EventTimeForNow(),
      ui::PointerDetails(ui::EventPointerType::POINTER_TYPE_TOUCH, 0));
  ui::TouchEvent release(
      ui::ET_TOUCH_RELEASED, gfx::Point(20, 20), ui::EventTimeForNow(),
      ui::PointerDetails(ui::EventPointerType::POINTER_TYPE_TOUCH, 0));

  // The touch events should get forwarded from the view, but they should not
  // reach the renderer.
  view_->OnTouchEvent(&press);
  base::RunLoop().RunUntilIdle();
  MockWidgetInputHandler::MessageVector events =
      GetAndResetDispatchedMessages();
  EXPECT_EQ(0U, events.size());
  EXPECT_TRUE(press.synchronous_handling_disabled());
  EXPECT_EQ(ui::MotionEvent::Action::DOWN, pointer_state().GetAction());

  view_->OnTouchEvent(&move);
  base::RunLoop().RunUntilIdle();
  events = GetAndResetDispatchedMessages();
  EXPECT_EQ(0U, events.size());
  EXPECT_TRUE(press.synchronous_handling_disabled());
  EXPECT_EQ(ui::MotionEvent::Action::MOVE, pointer_state().GetAction());
  EXPECT_EQ(1U, pointer_state().GetPointerCount());

  view_->OnTouchEvent(&release);
  base::RunLoop().RunUntilIdle();
  events = GetAndResetDispatchedMessages();
  EXPECT_EQ(0U, events.size());
  EXPECT_TRUE(press.synchronous_handling_disabled());
  EXPECT_EQ(0U, pointer_state().GetPointerCount());

  // Now install some touch-event handlers and do the same steps. The touch
  // events should now be consumed. However, the touch-event state should be
  // updated as before.
  widget_host_->OnMessageReceived(WidgetHostMsg_HasTouchEventHandlers(0, true));

  view_->OnTouchEvent(&press);
  base::RunLoop().RunUntilIdle();
  events = GetAndResetDispatchedMessages();
  EXPECT_EQ(1U, events.size());
  EXPECT_TRUE(press.synchronous_handling_disabled());
  EXPECT_EQ(ui::MotionEvent::Action::DOWN, pointer_state().GetAction());
  EXPECT_EQ(1U, pointer_state().GetPointerCount());
  widget_host_->input_router()->OnSetTouchAction(cc::kTouchActionAuto);

  view_->OnTouchEvent(&move);
  base::RunLoop().RunUntilIdle();
  EXPECT_TRUE(move.synchronous_handling_disabled());
  EXPECT_EQ(ui::MotionEvent::Action::MOVE, pointer_state().GetAction());
  EXPECT_EQ(1U, pointer_state().GetPointerCount());
  view_->OnTouchEvent(&release);
  EXPECT_TRUE(release.synchronous_handling_disabled());
  EXPECT_EQ(0U, pointer_state().GetPointerCount());

  // Now start a touch event, and remove the event-handlers before the release.
  view_->OnTouchEvent(&press);
  base::RunLoop().RunUntilIdle();
  EXPECT_TRUE(press.synchronous_handling_disabled());
  EXPECT_EQ(ui::MotionEvent::Action::DOWN, pointer_state().GetAction());
  EXPECT_EQ(1U, pointer_state().GetPointerCount());
  events = GetAndResetDispatchedMessages();
  EXPECT_EQ(3U, events.size());

  widget_host_->OnMessageReceived(
      WidgetHostMsg_HasTouchEventHandlers(0, false));

  // All outstanding events should have already been sent but no new events
  // should get sent.
  InputEventAck ack(
      InputEventAckSource::COMPOSITOR_THREAD, blink::WebInputEvent::kTouchStart,
      INPUT_EVENT_ACK_STATE_NO_CONSUMER_EXISTS, press.unique_event_id());
  events = GetAndResetDispatchedMessages();
  EXPECT_EQ(0U, events.size());

  ui::TouchEvent move2(
      ui::ET_TOUCH_MOVED, gfx::Point(20, 20), base::TimeTicks::Now(),
      ui::PointerDetails(ui::EventPointerType::POINTER_TYPE_TOUCH, 0));
  view_->OnTouchEvent(&move2);
  base::RunLoop().RunUntilIdle();
  EXPECT_TRUE(press.synchronous_handling_disabled());
  EXPECT_EQ(ui::MotionEvent::Action::MOVE, pointer_state().GetAction());
  EXPECT_EQ(1U, pointer_state().GetPointerCount());

  ui::TouchEvent release2(
      ui::ET_TOUCH_RELEASED, gfx::Point(20, 20), base::TimeTicks::Now(),
      ui::PointerDetails(ui::EventPointerType::POINTER_TYPE_TOUCH, 0));
  view_->OnTouchEvent(&release2);
  base::RunLoop().RunUntilIdle();
  EXPECT_TRUE(press.synchronous_handling_disabled());
  EXPECT_EQ(0U, pointer_state().GetPointerCount());
  events = GetAndResetDispatchedMessages();
  EXPECT_EQ(0U, events.size());
}

// The DOM KeyCode map for Fuchsia maps all DomCodes to 0.  This means that
// tests which expect different behaviors for different keys will not work.
// Tracked via crbug.com/829551
#if defined(OS_FUCHSIA)
#define MAYBE_KeyEventRoutingWithKeyboardLockActiveForOneKey \
  DISABLED_KeyEventRoutingWithKeyboardLockActiveForOneKey
#else
#define MAYBE_KeyEventRoutingWithKeyboardLockActiveForOneKey \
  KeyEventRoutingWithKeyboardLockActiveForOneKey
#endif
TEST_F(RenderWidgetHostViewAuraTest,
       MAYBE_KeyEventRoutingWithKeyboardLockActiveForOneKey) {
  view_->InitAsChild(nullptr);
  view_->Show();

  auto test_hook = std::make_unique<TestScopedKeyboardHook>();
  test_hook->LockSpecificKey(ui::DomCode::US_A);
  view_->event_handler()->scoped_keyboard_hook_ = std::move(test_hook);

  // This locked key will skip the prehandler and be sent to the input handler.
  ui::KeyEvent key_event1(ui::ET_KEY_PRESSED,
                          ui::DomCodeToUsLayoutKeyboardCode(ui::DomCode::US_A),
                          ui::DomCode::US_A, ui::EF_NONE);
  view_->OnKeyEvent(&key_event1);
  const NativeWebKeyboardEvent* event1 =
      render_widget_host_delegate()->last_event();
  ASSERT_FALSE(event1);
  // Run the runloop to ensure input messages are dispatched.  Otherwise the
  // result of GetAndResetDispatchedMessages() will not be valid.
  base::RunLoop().RunUntilIdle();
  auto events = GetAndResetDispatchedMessages();
  ASSERT_FALSE(events.empty());
  const NativeWebKeyboardEvent* native_key_event1 =
      static_cast<const NativeWebKeyboardEvent*>(
          events[0]->ToEvent()->Event()->web_event.get());
  ASSERT_TRUE(native_key_event1);
  ASSERT_EQ(key_event1.key_code(), native_key_event1->windows_key_code);
  ASSERT_EQ(ui::KeycodeConverter::DomCodeToNativeKeycode(key_event1.code()),
            native_key_event1->native_key_code);

  // These keys will pass through the prehandler since they aren't locked.
  std::vector<ui::DomCode> dom_codes = {
      ui::DomCode::US_B,     ui::DomCode::US_Z,  ui::DomCode::TAB,
      ui::DomCode::ALT_LEFT, ui::DomCode::ENTER, ui::DomCode::ESCAPE};
  for (ui::DomCode dom_code : dom_codes) {
    ui::KeyEvent key_event(ui::ET_KEY_PRESSED,
                           ui::DomCodeToUsLayoutKeyboardCode(dom_code),
                           dom_code, ui::EF_NONE);
    view_->OnKeyEvent(&key_event);
    const NativeWebKeyboardEvent* event =
        render_widget_host_delegate()->last_event();
    ASSERT_TRUE(event) << "Failed for DomCode: "
                       << ui::KeycodeConverter::DomCodeToCodeString(dom_code);
    ASSERT_EQ(key_event.key_code(), event->windows_key_code);
    ASSERT_EQ(ui::KeycodeConverter::DomCodeToNativeKeycode(key_event.code()),
              event->native_key_code);
  }
}

// The DOM KeyCode map for Fuchsia maps all DomCodes to 0.  This means that
// tests which expect different behaviors for different keys will not work.
// Tracked via crbug.com/829551
#if defined(OS_FUCHSIA)
#define MAYBE_KeyEventRoutingWithKeyboardLockActiveForEscKey \
  DISABLED_KeyEventRoutingWithKeyboardLockActiveForEscKey
#else
#define MAYBE_KeyEventRoutingWithKeyboardLockActiveForEscKey \
  KeyEventRoutingWithKeyboardLockActiveForEscKey
#endif
TEST_F(RenderWidgetHostViewAuraTest,
       MAYBE_KeyEventRoutingWithKeyboardLockActiveForEscKey) {
  view_->InitAsChild(nullptr);
  view_->Show();

  auto test_hook = std::make_unique<TestScopedKeyboardHook>();
  test_hook->LockSpecificKey(ui::DomCode::ESCAPE);
  view_->event_handler()->scoped_keyboard_hook_ = std::move(test_hook);

  // Although this key was locked, it will still pass through the prehandler as
  // we do not want to prevent ESC from being used to exit fullscreen.
  ui::KeyEvent key_event1(
      ui::ET_KEY_PRESSED,
      ui::DomCodeToUsLayoutKeyboardCode(ui::DomCode::ESCAPE),
      ui::DomCode::ESCAPE, ui::EF_NONE);
  view_->OnKeyEvent(&key_event1);
  const NativeWebKeyboardEvent* event1 =
      render_widget_host_delegate()->last_event();
  ASSERT_TRUE(event1);
  ASSERT_EQ(key_event1.key_code(), event1->windows_key_code);
  ASSERT_EQ(ui::KeycodeConverter::DomCodeToNativeKeycode(key_event1.code()),
            event1->native_key_code);

  // This event will pass through the prehandler since it isn't locked.
  ui::KeyEvent key_event2(ui::ET_KEY_PRESSED,
                          ui::DomCodeToUsLayoutKeyboardCode(ui::DomCode::US_B),
                          ui::DomCode::US_B, ui::EF_NONE);
  view_->OnKeyEvent(&key_event2);
  const NativeWebKeyboardEvent* event2 =
      render_widget_host_delegate()->last_event();
  ASSERT_TRUE(event2);
  ASSERT_EQ(key_event2.key_code(), event2->windows_key_code);
  ASSERT_EQ(ui::KeycodeConverter::DomCodeToNativeKeycode(key_event2.code()),
            event2->native_key_code);
}

TEST_F(RenderWidgetHostViewAuraTest,
       KeyEventRoutingWithKeyboardLockActiveForAllKeys) {
  view_->InitAsChild(nullptr);
  view_->Show();

  auto test_hook = std::make_unique<TestScopedKeyboardHook>();
  test_hook->LockAllKeys();
  view_->event_handler()->scoped_keyboard_hook_ = std::move(test_hook);

  // These keys will skip the prehandler and be sent to the input handler.
  std::vector<ui::DomCode> dom_codes = {ui::DomCode::US_A, ui::DomCode::US_B,
                                        ui::DomCode::TAB, ui::DomCode::ALT_LEFT,
                                        ui::DomCode::ENTER};
  for (ui::DomCode dom_code : dom_codes) {
    ui::KeyEvent key_event(ui::ET_KEY_PRESSED,
                           ui::DomCodeToUsLayoutKeyboardCode(dom_code),
                           dom_code, ui::EF_NONE);
    view_->OnKeyEvent(&key_event);
    const NativeWebKeyboardEvent* event =
        render_widget_host_delegate()->last_event();
    ASSERT_FALSE(event) << "Failed for DomCode: "
                        << ui::KeycodeConverter::DomCodeToCodeString(dom_code);
    // Run the runloop to ensure input messages are dispatched.  Otherwise the
    // result of GetAndResetDispatchedMessages() will not be valid.
    base::RunLoop().RunUntilIdle();
    auto events = GetAndResetDispatchedMessages();
    ASSERT_FALSE(events.empty())
        << "Failed for DomCode: "
        << ui::KeycodeConverter::DomCodeToCodeString(dom_code);
    const NativeWebKeyboardEvent* native_key_event =
        static_cast<const NativeWebKeyboardEvent*>(
            events[0]->ToEvent()->Event()->web_event.get());
    ASSERT_TRUE(native_key_event)
        << "Failed for DomCode: "
        << ui::KeycodeConverter::DomCodeToCodeString(dom_code);
    ASSERT_EQ(key_event.key_code(), native_key_event->windows_key_code);
    ASSERT_EQ(ui::KeycodeConverter::DomCodeToNativeKeycode(key_event.code()),
              native_key_event->native_key_code);
  }

  // Although this key was locked, it will still pass through the prehandler as
  // we do not want to prevent ESC from being used to exit fullscreen.
  ui::KeyEvent esc_key_event(
      ui::ET_KEY_PRESSED,
      ui::DomCodeToUsLayoutKeyboardCode(ui::DomCode::ESCAPE),
      ui::DomCode::ESCAPE, ui::EF_NONE);
  view_->OnKeyEvent(&esc_key_event);
  const NativeWebKeyboardEvent* esc_event =
      render_widget_host_delegate()->last_event();
  ASSERT_TRUE(esc_event);
  ASSERT_EQ(esc_key_event.key_code(), esc_event->windows_key_code);
  ASSERT_EQ(ui::KeycodeConverter::DomCodeToNativeKeycode(esc_key_event.code()),
            esc_event->native_key_code);
}

TEST_F(RenderWidgetHostViewAuraTest,
       KeyEventRoutingKeyboardLockAndChildPopupWithInputGrab) {
  parent_view_->SetBounds(gfx::Rect(10, 10, 400, 400));
  parent_view_->Focus();
  ASSERT_TRUE(parent_view_->HasFocus());

  view_->SetWidgetType(WidgetType::kPopup);
  view_->InitAsPopup(parent_view_, gfx::Rect(10, 10, 100, 100));
  ASSERT_NE(nullptr, view_->GetNativeView());
  view_->Show();

  MockRenderWidgetHostImpl* parent_host =
      static_cast<MockRenderWidgetHostImpl*>(parent_host_);
  // Run the runloop to ensure input messages are dispatched.  Otherwise the
  // result of GetAndResetDispatchedMessages() will not be valid.
  base::RunLoop().RunUntilIdle();
  // A MouseCapture lost message is posted when the child gains focus, clear
  // that message out so we can reliably test the number of messages
  // dispatched later on in the test.
  parent_host->input_handler()->GetAndResetDispatchedMessages();

  // The parent view owns the KeyboardLock for this test.
  auto test_hook = std::make_unique<TestScopedKeyboardHook>();
  test_hook->LockAllKeys();
  parent_view_->event_handler()->scoped_keyboard_hook_ = std::move(test_hook);

  // These keys will not be processed by the parent view but will be handled in
  // the child (popup) view.
  std::vector<ui::DomCode> dom_codes = {
      ui::DomCode::US_A,     ui::DomCode::ENTER, ui::DomCode::TAB,
      ui::DomCode::ALT_LEFT, ui::DomCode::US_Z,  ui::DomCode::ESCAPE};
  for (ui::DomCode dom_code : dom_codes) {
    ui::KeyEvent key_event(ui::ET_KEY_PRESSED,
                           ui::DomCodeToUsLayoutKeyboardCode(dom_code),
                           dom_code, ui::EF_NONE);
    parent_view_->OnKeyEvent(&key_event);
    const NativeWebKeyboardEvent* parent_event = delegates_[0]->last_event();
    ASSERT_FALSE(parent_event)
        << "Failed for DomCode: "
        << ui::KeycodeConverter::DomCodeToCodeString(dom_code);

    const NativeWebKeyboardEvent* child_event =
        render_widget_host_delegate()->last_event();
    ASSERT_TRUE(child_event)
        << "Failed for DomCode: "
        << ui::KeycodeConverter::DomCodeToCodeString(dom_code);
    ASSERT_EQ(key_event.key_code(), child_event->windows_key_code);
    ASSERT_EQ(ui::KeycodeConverter::DomCodeToNativeKeycode(key_event.code()),
              child_event->native_key_code);
    // Run the runloop to ensure input messages are dispatched.  Otherwise the
    // result of GetAndResetDispatchedMessages() will not be valid.
    base::RunLoop().RunUntilIdle();
    auto parent_events =
        parent_host->input_handler()->GetAndResetDispatchedMessages();
    ASSERT_TRUE(parent_events.empty())
        << "Failed for DomCode: "
        << ui::KeycodeConverter::DomCodeToCodeString(dom_code);
    auto child_events = GetAndResetDispatchedMessages();
    ASSERT_FALSE(child_events.empty())
        << "Failed for DomCode: "
        << ui::KeycodeConverter::DomCodeToCodeString(dom_code);
  }
}

TEST_F(RenderWidgetHostViewAuraTest, TimerBasedWheelEventPhaseInfo) {
  view_->InitAsChild(nullptr);
  view_->Show();
  sink_->ClearMessages();

  ui::MouseWheelEvent event(gfx::Vector2d(0, 5), gfx::Point(2, 2),
                            gfx::Point(2, 2), ui::EventTimeForNow(), 0, 0);
  view_->OnMouseEvent(&event);
  base::RunLoop().RunUntilIdle();
  MockWidgetInputHandler::MessageVector events =
      GetAndResetDispatchedMessages();

  EXPECT_TRUE(events[0]->ToEvent());
  const WebMouseWheelEvent* wheel_event =
      static_cast<const WebMouseWheelEvent*>(
          events[0]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(WebMouseWheelEvent::kPhaseBegan, wheel_event->phase);
  events[0]->ToEvent()->CallCallback(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);

  events = GetAndResetDispatchedMessages();
  const WebGestureEvent* gesture_event = static_cast<const WebGestureEvent*>(
      events[0]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(WebInputEvent::kGestureScrollBegin, gesture_event->GetType());
  EXPECT_TRUE(gesture_event->data.scroll_begin.synthetic);
  events[0]->ToEvent()->CallCallback(INPUT_EVENT_ACK_STATE_CONSUMED);

  gesture_event = static_cast<const WebGestureEvent*>(
      events[1]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(WebInputEvent::kGestureScrollUpdate, gesture_event->GetType());
  EXPECT_EQ(0U, gesture_event->data.scroll_update.delta_x);
  EXPECT_EQ(5U, gesture_event->data.scroll_update.delta_y);
  events[1]->ToEvent()->CallCallback(INPUT_EVENT_ACK_STATE_CONSUMED);

  // Send a ui::ScrollEvent instead of ui::MouseWheel event, the timer based
  // phase info doesn't diffrentiate between the two types of events.
  ui::ScrollEvent scroll1(ui::ET_SCROLL, gfx::Point(2, 2),
                          ui::EventTimeForNow(), 0, 0, 2, 0, 2, 2);
  view_->OnScrollEvent(&scroll1);
  base::RunLoop().RunUntilIdle();
  events = GetAndResetDispatchedMessages();
  wheel_event = static_cast<const WebMouseWheelEvent*>(
      events[0]->ToEvent()->Event()->web_event.get());
  base::TimeTicks wheel_event_timestamp = wheel_event->TimeStamp();
  EXPECT_EQ(WebMouseWheelEvent::kPhaseChanged, wheel_event->phase);

    gesture_event = static_cast<const WebGestureEvent*>(
        events[1]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(WebInputEvent::kGestureScrollUpdate, gesture_event->GetType());
  EXPECT_EQ(0U, gesture_event->data.scroll_update.delta_x);
  EXPECT_EQ(2U, gesture_event->data.scroll_update.delta_y);
  events[0]->ToEvent()->CallCallback(INPUT_EVENT_ACK_STATE_CONSUMED);

  // Let the MouseWheelPhaseHandler::mouse_wheel_end_dispatch_timer_ fire. A
  // synthetic wheel event with zero deltas and kPhaseEnded will be sent.
  base::PlatformThread::Sleep(base::TimeDelta::FromMilliseconds(100));
  base::RunLoop().RunUntilIdle();

  events = GetAndResetDispatchedMessages();
  const WebMouseWheelEvent* wheel_end_event =
      static_cast<const WebMouseWheelEvent*>(
          events[0]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(WebMouseWheelEvent::kPhaseEnded, wheel_end_event->phase);
  EXPECT_EQ(0U, wheel_end_event->delta_x);
  EXPECT_EQ(0U, wheel_end_event->delta_y);
  EXPECT_EQ(0U, wheel_end_event->wheel_ticks_x);
  EXPECT_EQ(0U, wheel_end_event->wheel_ticks_y);
  EXPECT_GT(wheel_end_event->TimeStamp(), wheel_event_timestamp);

  gesture_event = static_cast<const WebGestureEvent*>(
      events[1]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(WebInputEvent::kGestureScrollEnd, gesture_event->GetType());
  EXPECT_TRUE(gesture_event->data.scroll_end.synthetic);
}

// Tests that latching breaks when the difference between location of the first
// wheel event in the sequence and the location of the current wheel event is
// larger than some maximum threshold.
TEST_F(RenderWidgetHostViewAuraTest, TimerBasedLatchingBreaksWithMouseMove) {
  // Set the mouse_wheel_phase_handler_ timer timeout to a large value to make
  // sure that the timer is still running when the wheel event with different
  // location is sent.
  view_->event_handler()->set_mouse_wheel_wheel_phase_handler_timeout(
      TestTimeouts::action_max_timeout());

  view_->InitAsChild(nullptr);
  view_->Show();
  sink_->ClearMessages();

  ui::MouseWheelEvent event(gfx::Vector2d(0, 5), gfx::Point(2, 2),
                            gfx::Point(2, 2), ui::EventTimeForNow(), 0, 0);
  view_->OnMouseEvent(&event);
  base::RunLoop().RunUntilIdle();
  MockWidgetInputHandler::MessageVector events =
      GetAndResetDispatchedMessages();

  EXPECT_TRUE(events[0]->ToEvent());
  const WebMouseWheelEvent* wheel_event =
      static_cast<const WebMouseWheelEvent*>(
          events[0]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(WebMouseWheelEvent::kPhaseBegan, wheel_event->phase);
  events[0]->ToEvent()->CallCallback(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
  events = GetAndResetDispatchedMessages();

  // Send the second wheel event with a location within the slop region. The
  // second wheel event will still be part of the current scrolling sequence
  // since the location difference is less than the allowed threshold.
  ui::MouseWheelEvent event2(gfx::Vector2d(0, 5),
                             gfx::Point(2 + kWheelLatchingSlopRegion / 2, 2),
                             gfx::Point(2 + kWheelLatchingSlopRegion / 2, 2),
                             ui::EventTimeForNow(), 0, 0);
  view_->OnMouseEvent(&event2);
  base::RunLoop().RunUntilIdle();
  events = GetAndResetDispatchedMessages();
  EXPECT_EQ("MouseWheel GestureScrollUpdate", GetMessageNames(events));

  wheel_event = static_cast<const WebMouseWheelEvent*>(
      events[0]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(WebMouseWheelEvent::kPhaseChanged, wheel_event->phase);
  events = GetAndResetDispatchedMessages();

  // Send the third wheel event with a location outside of the slop region. The
  // third wheel event will break the latching since the location difference is
  // larger than the allowed threshold.
  ui::MouseWheelEvent event3(
      gfx::Vector2d(0, 5), gfx::Point(2 + kWheelLatchingSlopRegion, 2),
      gfx::Point(2 + kWheelLatchingSlopRegion, 2), ui::EventTimeForNow(), 0, 0);
  view_->OnMouseEvent(&event3);
  base::RunLoop().RunUntilIdle();
  events = GetAndResetDispatchedMessages();
  EXPECT_EQ("MouseWheel GestureScrollEnd MouseWheel", GetMessageNames(events));
  wheel_event = static_cast<const WebMouseWheelEvent*>(
      events[0]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(WebMouseWheelEvent::kPhaseEnded, wheel_event->phase);

  wheel_event = static_cast<const WebMouseWheelEvent*>(
      events[2]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(WebMouseWheelEvent::kPhaseBegan, wheel_event->phase);
}

// Tests that latching breaks when the current wheel event has different
// modifiers.
TEST_F(RenderWidgetHostViewAuraTest,
       TimerBasedLatchingBreaksWithModifiersChange) {
  // Set the mouse_wheel_phase_handler_ timer timeout to a large value to make
  // sure that the timer is still running when the wheel event with different
  // modifiers is sent.
  view_->event_handler()->set_mouse_wheel_wheel_phase_handler_timeout(
      TestTimeouts::action_max_timeout());

  view_->InitAsChild(nullptr);
  view_->Show();
  sink_->ClearMessages();

  ui::MouseWheelEvent event(gfx::Vector2d(0, 5), gfx::Point(2, 2),
                            gfx::Point(2, 2), ui::EventTimeForNow(), 0, 0);
  view_->OnMouseEvent(&event);
  base::RunLoop().RunUntilIdle();
  MockWidgetInputHandler::MessageVector events =
      GetAndResetDispatchedMessages();

  EXPECT_TRUE(events[0]->ToEvent());
  const WebMouseWheelEvent* wheel_event =
      static_cast<const WebMouseWheelEvent*>(
          events[0]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(WebMouseWheelEvent::kPhaseBegan, wheel_event->phase);
  events[0]->ToEvent()->CallCallback(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
  events = GetAndResetDispatchedMessages();

  // Send the second wheel event with the same modifiers. The second wheel event
  // will still be part of the current scrolling sequence.
  ui::MouseWheelEvent event2(gfx::Vector2d(0, 5), gfx::Point(2, 2),
                             gfx::Point(2, 2), ui::EventTimeForNow(), 0, 0);
  view_->OnMouseEvent(&event2);
  base::RunLoop().RunUntilIdle();
  events = GetAndResetDispatchedMessages();
  EXPECT_EQ("MouseWheel GestureScrollUpdate", GetMessageNames(events));

  wheel_event = static_cast<const WebMouseWheelEvent*>(
      events[0]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(WebMouseWheelEvent::kPhaseChanged, wheel_event->phase);
  events = GetAndResetDispatchedMessages();

  // Send the third wheel event with a ctrl key down. The third wheel event will
  // break the latching since the event modifiers have changed.
  ui::MouseWheelEvent event3(gfx::Vector2d(0, 5), gfx::Point(2, 2),
                             gfx::Point(2, 2), ui::EventTimeForNow(),
                             ui::EF_CONTROL_DOWN, 0);
  view_->OnMouseEvent(&event3);
  base::RunLoop().RunUntilIdle();
  events = GetAndResetDispatchedMessages();
  EXPECT_EQ("MouseWheel GestureScrollEnd MouseWheel", GetMessageNames(events));
  wheel_event = static_cast<const WebMouseWheelEvent*>(
      events[0]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(WebMouseWheelEvent::kPhaseEnded, wheel_event->phase);

  wheel_event = static_cast<const WebMouseWheelEvent*>(
      events[2]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(WebMouseWheelEvent::kPhaseBegan, wheel_event->phase);
}

// Tests that latching breaks when the new wheel event goes a different
// direction from previous wheel events and the previous GSU events are not
// consumed.
TEST_F(RenderWidgetHostViewAuraTest,
       TimerBasedLatchingBreaksWithDirectionChange) {
  // Set the mouse_wheel_phase_handler_ timer timeout to a large value to make
  // sure that the timer is still running when the wheel event with different
  // modifiers is sent.
  view_->event_handler()->set_mouse_wheel_wheel_phase_handler_timeout(
      TestTimeouts::action_max_timeout());

  view_->InitAsChild(nullptr);
  view_->Show();
  sink_->ClearMessages();

  ui::MouseWheelEvent event(gfx::Vector2d(0, 5), gfx::Point(2, 2),
                            gfx::Point(2, 2), ui::EventTimeForNow(), 0, 0);
  view_->OnMouseEvent(&event);
  base::RunLoop().RunUntilIdle();
  MockWidgetInputHandler::MessageVector events =
      GetAndResetDispatchedMessages();

  EXPECT_TRUE(events[0]->ToEvent());
  const WebMouseWheelEvent* wheel_event =
      static_cast<const WebMouseWheelEvent*>(
          events[0]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(WebMouseWheelEvent::kPhaseBegan, wheel_event->phase);
  events[0]->ToEvent()->CallCallback(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);

  // ACK the GSU as NOT_CONSUMED.
  events = GetAndResetDispatchedMessages();
  EXPECT_EQ("GestureScrollBegin GestureScrollUpdate", GetMessageNames(events));
  EXPECT_TRUE(events[0]->ToEvent());
  EXPECT_TRUE(events[1]->ToEvent());
  events[0]->ToEvent()->CallCallback(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
  events[1]->ToEvent()->CallCallback(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);

  // Send the second wheel event with different directions. This wheel event
  // will break the latching since the last GSU was NOT_CONSUMED and the
  // scrolling direction has changed.
  ui::MouseWheelEvent event2(gfx::Vector2d(-5, 0), gfx::Point(2, 2),
                             gfx::Point(2, 2), ui::EventTimeForNow(), 0, 0);
  view_->OnMouseEvent(&event2);
  base::RunLoop().RunUntilIdle();
  events = GetAndResetDispatchedMessages();
  EXPECT_EQ("MouseWheel GestureScrollEnd MouseWheel", GetMessageNames(events));
  wheel_event = static_cast<const WebMouseWheelEvent*>(
      events[0]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(WebMouseWheelEvent::kPhaseEnded, wheel_event->phase);

  wheel_event = static_cast<const WebMouseWheelEvent*>(
      events[2]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(WebMouseWheelEvent::kPhaseBegan, wheel_event->phase);
}

TEST_F(RenderWidgetHostViewAuraTest,
       TimerBasedLatchingBreaksWithAutoscrollStart) {
  // Set the mouse_wheel_phase_handler_ timer timeout to a large value to make
  // sure that the timer is still running when the Autoscroll starts.
  view_->event_handler()->set_mouse_wheel_wheel_phase_handler_timeout(
      TestTimeouts::action_max_timeout());

  view_->InitAsChild(nullptr);
  view_->Show();
  sink_->ClearMessages();

  ui::MouseWheelEvent event(gfx::Vector2d(0, 5), gfx::Point(2, 2),
                            gfx::Point(2, 2), ui::EventTimeForNow(), 0, 0);
  view_->OnMouseEvent(&event);
  base::RunLoop().RunUntilIdle();
  MockWidgetInputHandler::MessageVector events =
      GetAndResetDispatchedMessages();
  EXPECT_EQ("MouseWheel", GetMessageNames(events));
  EXPECT_TRUE(events[0]->ToEvent());
  const WebMouseWheelEvent* wheel_event =
      static_cast<const WebMouseWheelEvent*>(
          events[0]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(WebMouseWheelEvent::kPhaseBegan, wheel_event->phase);
  events[0]->ToEvent()->CallCallback(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
  EXPECT_TRUE(GetMouseWheelPhaseHandler()->HasPendingWheelEndEvent());
  events = GetAndResetDispatchedMessages();

  // Autoscroll start breaks wheel scroll latching sequence by sending the
  // pending wheel end event, the non-blocking wheel end event will be acked
  // immediately and a GSE will be sent. The next wheel event will start a new
  // scrolling sequence.
  view_->OnAutoscrollStart();
  EXPECT_FALSE(GetMouseWheelPhaseHandler()->HasPendingWheelEndEvent());
  ui::MouseWheelEvent event2(gfx::Vector2d(0, 5), gfx::Point(2, 2),
                             gfx::Point(2, 2), ui::EventTimeForNow(), 0, 0);
  view_->OnMouseEvent(&event2);
  base::RunLoop().RunUntilIdle();
  events = GetAndResetDispatchedMessages();
  EXPECT_EQ("MouseWheel GestureScrollEnd MouseWheel", GetMessageNames(events));
  EXPECT_TRUE(events[0]->ToEvent());
  wheel_event = static_cast<const WebMouseWheelEvent*>(
      events[0]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(WebMouseWheelEvent::kPhaseEnded, wheel_event->phase);
  EXPECT_TRUE(events[2]->ToEvent());
  wheel_event = static_cast<const WebMouseWheelEvent*>(
      events[2]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(WebMouseWheelEvent::kPhaseBegan, wheel_event->phase);
}

// Tests that a gesture fling start with touchpad source resets wheel phase
// state.
TEST_F(RenderWidgetHostViewAuraTest, TouchpadFlingStartResetsWheelPhaseState) {
  // Set the mouse_wheel_phase_handler_ timer timeout to a large value to make
  // sure that the timer is still running when the touchpad fling start is sent.
  view_->event_handler()->set_mouse_wheel_wheel_phase_handler_timeout(
      TestTimeouts::action_max_timeout());

  // When the user puts their fingers down a GFC is receieved.
  ui::ScrollEvent fling_cancel(ui::ET_SCROLL_FLING_CANCEL, gfx::Point(2, 2),
                               ui::EventTimeForNow(), 0, 0, 0, 0, 0, 2);
  view_->OnScrollEvent(&fling_cancel);

  // Scrolling starts.
  ui::ScrollEvent scroll0(ui::ET_SCROLL, gfx::Point(2, 2),
                          ui::EventTimeForNow(), 0, 0, 5, 0, 5, 2);
  view_->OnScrollEvent(&scroll0);
  base::RunLoop().RunUntilIdle();
  MockWidgetInputHandler::MessageVector events =
      GetAndResetDispatchedMessages();

  const WebMouseWheelEvent* wheel_event =
      static_cast<const WebMouseWheelEvent*>(
          events[0]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ("MouseWheel", GetMessageNames(events));
  EXPECT_EQ(WebMouseWheelEvent::kPhaseBegan, wheel_event->phase);
  events[0]->ToEvent()->CallCallback(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);

  events = GetAndResetDispatchedMessages();
  EXPECT_EQ("GestureScrollBegin GestureScrollUpdate", GetMessageNames(events));
  const WebGestureEvent* gesture_event = static_cast<const WebGestureEvent*>(
      events[0]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(WebInputEvent::kGestureScrollBegin, gesture_event->GetType());
  events[0]->ToEvent()->CallCallback(INPUT_EVENT_ACK_STATE_CONSUMED);

  gesture_event = static_cast<const WebGestureEvent*>(
      events[1]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(WebInputEvent::kGestureScrollUpdate, gesture_event->GetType());
  EXPECT_EQ(0U, gesture_event->data.scroll_update.delta_x);
  EXPECT_EQ(5U, gesture_event->data.scroll_update.delta_y);
  events[1]->ToEvent()->CallCallback(INPUT_EVENT_ACK_STATE_CONSUMED);

  // Wait for some time and resume scrolling. The second scroll will latch since
  // the user hasn't lifted their fingers, yet.
  base::RunLoop run_loop;
  base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
      FROM_HERE, run_loop.QuitClosure(),
      base::TimeDelta::FromMilliseconds(200));
  run_loop.Run();
  ui::ScrollEvent scroll1(ui::ET_SCROLL, gfx::Point(2, 2),
                          ui::EventTimeForNow(), 0, 0, 15, 0, 15, 2);
  view_->OnScrollEvent(&scroll1);
  base::RunLoop().RunUntilIdle();
  events = GetAndResetDispatchedMessages();
  EXPECT_EQ(2U, events.size());
  wheel_event = static_cast<const WebMouseWheelEvent*>(
      events[0]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(WebMouseWheelEvent::kPhaseChanged, wheel_event->phase);
  EXPECT_EQ("MouseWheel GestureScrollUpdate", GetMessageNames(events));
  gesture_event = static_cast<const WebGestureEvent*>(
      events[1]->ToEvent()->Event()->web_event.get());
  events[1]->ToEvent()->CallCallback(INPUT_EVENT_ACK_STATE_CONSUMED);
  EXPECT_EQ(WebInputEvent::kGestureScrollUpdate, gesture_event->GetType());
  EXPECT_EQ(0U, gesture_event->data.scroll_update.delta_x);
  EXPECT_EQ(15U, gesture_event->data.scroll_update.delta_y);

  // A GFS is received showing that the user has lifted their fingers. This will
  // reset the scroll state of the wheel phase handler. The velocity should be
  // big enough to make sure that fling is still active while sending the scroll
  // event.
  ui::ScrollEvent fling_start(ui::ET_SCROLL_FLING_START, gfx::Point(2, 2),
                              ui::EventTimeForNow(), 0, 0, 1000, 0, 1000, 2);
  view_->OnScrollEvent(&fling_start);
  base::RunLoop().RunUntilIdle();

  events = GetAndResetDispatchedMessages();
  // A GFS with touchpad source won't get dispatched to the renderer. However,
  // since progressFling is called right away after processing the GFS, it is
  // possible that a progress event is sent if the time delta between GFS
  // timestamp and the time that it gets processed is large enough.
  bool progress_event_sent = events.size();
  if (progress_event_sent)
    EXPECT_EQ("MouseWheel GestureScrollUpdate", GetMessageNames(events));

  // Handling the next ui::ET_SCROLL event will generate a GFC which resets the
  // phase state. The fling controller processes GFC and generates a wheel event
  // with momentum_phase == kPhaseEnded. The mouse wheel created from scroll2
  // will have phase == kPhaseBegan.
  ui::ScrollEvent scroll2(ui::ET_SCROLL, gfx::Point(2, 2),
                          ui::EventTimeForNow(), 0, 0, 15, 0, 15, 2);
  view_->OnScrollEvent(&scroll2);
  base::RunLoop().RunUntilIdle();

  EXPECT_TRUE(widget_host_->FlingCancellationIsDeferred());
  events = GetAndResetDispatchedMessages();
  EXPECT_EQ("MouseWheel", GetMessageNames(events));
  wheel_event = static_cast<const WebMouseWheelEvent*>(
      events[0]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(WebMouseWheelEvent::kPhaseBegan, wheel_event->phase);
}

// Tests that the touchpad scroll state in mouse wheel phase handler gets reset
// when a mouse wheel event from an external mouse arrives.
TEST_F(RenderWidgetHostViewAuraTest, MouseWheelScrollingAfterGFCWithoutGFS) {
  // Set the mouse_wheel_phase_handler_ timer timeout to a large value to make
  // sure that the timer is still running when we are checking for the pending
  // wheel end event after sending ui::MouseWheelEvent.
  view_->event_handler()->set_mouse_wheel_wheel_phase_handler_timeout(
      TestTimeouts::action_max_timeout());

  view_->InitAsChild(nullptr);
  view_->Show();
  sink_->ClearMessages();

  // When the user puts their fingers down a GFC is received. This will change
  // the touchpad scroll state in mouse wheel phase handler to may_begin.
  EXPECT_EQ(
      content::TOUCHPAD_SCROLL_STATE_UNKNOWN,
      GetMouseWheelPhaseHandler()->touchpad_scroll_phase_state_for_test());
  ui::ScrollEvent fling_cancel(ui::ET_SCROLL_FLING_CANCEL, gfx::Point(2, 2),
                               ui::EventTimeForNow(), 0, 0, 0, 0, 0, 2);
  view_->OnScrollEvent(&fling_cancel);
  GetAndResetDispatchedMessages();
  EXPECT_EQ(
      content::TOUCHPAD_SCROLL_MAY_BEGIN,
      GetMouseWheelPhaseHandler()->touchpad_scroll_phase_state_for_test());
  EXPECT_FALSE(GetMouseWheelPhaseHandler()->HasPendingWheelEndEvent());

  // The user lifts their fingers without doing any touchpad scroll
  // (ui::ScrollEevent), the touchpad scroll state must still be may_begin since
  // without touchpad scrolling no GFS is recieved to reset the state.
  EXPECT_EQ(
      content::TOUCHPAD_SCROLL_MAY_BEGIN,
      GetMouseWheelPhaseHandler()->touchpad_scroll_phase_state_for_test());

  // The user starts scrolling by external mouse device.
  ui::MouseWheelEvent wheel(gfx::Vector2d(0, 5), gfx::Point(2, 2),
                            gfx::Point(2, 2), ui::EventTimeForNow(), 0, 0);
  view_->OnMouseEvent(&wheel);
  base::RunLoop().RunUntilIdle();
  MockWidgetInputHandler::MessageVector events =
      GetAndResetDispatchedMessages();
  const WebMouseWheelEvent* wheel_event =
      static_cast<const WebMouseWheelEvent*>(
          events[0]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ("MouseWheel", GetMessageNames(events));
  EXPECT_EQ(WebMouseWheelEvent::kPhaseBegan, wheel_event->phase);

  // After arrival of the mouse wheel event, the touchpad scroll state must get
  // reset and the timer based wheel scroll latching must be active.
  EXPECT_EQ(
      content::TOUCHPAD_SCROLL_STATE_UNKNOWN,
      GetMouseWheelPhaseHandler()->touchpad_scroll_phase_state_for_test());
  EXPECT_TRUE(GetMouseWheelPhaseHandler()->HasPendingWheelEndEvent());
}

TEST_F(RenderWidgetHostViewAuraTest,
       ScrollingWithExternalMouseBreaksTouchpadScrollLatching) {
  // Set the mouse_wheel_phase_handler_ timer timeout to a large value to make
  // sure that the timer is still running when we are checking for the pending
  // wheel end event after sending ui::MouseWheelEvent.
  view_->event_handler()->set_mouse_wheel_wheel_phase_handler_timeout(
      TestTimeouts::action_max_timeout());

  view_->InitAsChild(nullptr);
  view_->Show();
  sink_->ClearMessages();

  // When the user puts their fingers down a GFC is receieved.
  ui::ScrollEvent fling_cancel(ui::ET_SCROLL_FLING_CANCEL, gfx::Point(2, 2),
                               ui::EventTimeForNow(), 0, 0, 0, 0, 0, 2);
  view_->OnScrollEvent(&fling_cancel);

  // Start touchpad scrolling by sending a ui::ET_SCROLL event.
  ui::ScrollEvent scroll0(ui::ET_SCROLL, gfx::Point(2, 2),
                          ui::EventTimeForNow(), 0, 0, 5, 0, 5, 2);
  view_->OnScrollEvent(&scroll0);
  base::RunLoop().RunUntilIdle();
  MockWidgetInputHandler::MessageVector events =
      GetAndResetDispatchedMessages();

  const WebMouseWheelEvent* wheel_event =
      static_cast<const WebMouseWheelEvent*>(
          events[0]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ("MouseWheel", GetMessageNames(events));
  EXPECT_EQ(WebMouseWheelEvent::kPhaseBegan, wheel_event->phase);
  events[0]->ToEvent()->CallCallback(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);

  // The mouse_wheel_phase_handler's timer won't be running during touchpad
  // scroll.
  EXPECT_FALSE(GetMouseWheelPhaseHandler()->HasPendingWheelEndEvent());

  // ACK the GSB and GSU events generated from the first touchpad wheel event.
  events = GetAndResetDispatchedMessages();
  EXPECT_EQ("GestureScrollBegin GestureScrollUpdate", GetMessageNames(events));
  const WebGestureEvent* gesture_event = static_cast<const WebGestureEvent*>(
      events[0]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(WebInputEvent::kGestureScrollBegin, gesture_event->GetType());
  events[0]->ToEvent()->CallCallback(INPUT_EVENT_ACK_STATE_CONSUMED);
  gesture_event = static_cast<const WebGestureEvent*>(
      events[1]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(WebInputEvent::kGestureScrollUpdate, gesture_event->GetType());
  events[1]->ToEvent()->CallCallback(INPUT_EVENT_ACK_STATE_CONSUMED);

  // Start mouse wheel scrolling by sending a ui::ET_MOUSEWHEEL event. This
  // should end the touchpad scrolling sequence and start a new timer-based
  // wheel scrolling sequence.
  ui::MouseWheelEvent wheel(gfx::Vector2d(0, 5), gfx::Point(2, 2),
                            gfx::Point(2, 2), ui::EventTimeForNow(), 0, 0);
  view_->OnMouseEvent(&wheel);
  base::RunLoop().RunUntilIdle();
  events = GetAndResetDispatchedMessages();
  EXPECT_EQ("MouseWheel GestureScrollEnd MouseWheel", GetMessageNames(events));
  EXPECT_TRUE(events[0]->ToEvent());
  wheel_event = static_cast<const WebMouseWheelEvent*>(
      events[0]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(WebMouseWheelEvent::kPhaseEnded, wheel_event->phase);
  EXPECT_TRUE(events[2]->ToEvent());
  wheel_event = static_cast<const WebMouseWheelEvent*>(
      events[2]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(WebMouseWheelEvent::kPhaseBegan, wheel_event->phase);

  // The mouse_wheel_phase_handler's timer will be running during mouse wheel
  // scroll.
  EXPECT_TRUE(GetMouseWheelPhaseHandler()->HasPendingWheelEndEvent());
}

TEST_F(RenderWidgetHostViewAuraTest,
       GSBWithTouchSourceStopsWheelScrollSequence) {
  // Set the mouse_wheel_phase_handler_ timer timeout to a large value to make
  // sure that the timer is still running when the GSB event with touch source
  // is sent.
  view_->event_handler()->set_mouse_wheel_wheel_phase_handler_timeout(
      TestTimeouts::action_max_timeout());

  ui::ScrollEvent scroll0(ui::ET_SCROLL, gfx::Point(2, 2),
                          ui::EventTimeForNow(), 0, 0, 5, 0, 5, 2);
  view_->OnScrollEvent(&scroll0);
  base::RunLoop().RunUntilIdle();
  MockWidgetInputHandler::MessageVector events =
      GetAndResetDispatchedMessages();
  EXPECT_EQ("MouseWheel", GetMessageNames(events));
  const WebMouseWheelEvent* wheel_event =
      static_cast<const WebMouseWheelEvent*>(
          events[0]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(WebMouseWheelEvent::kPhaseBegan, wheel_event->phase);
  events[0]->ToEvent()->CallCallback(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);

  events = GetAndResetDispatchedMessages();
  EXPECT_EQ("GestureScrollBegin GestureScrollUpdate", GetMessageNames(events));
  const WebGestureEvent* gesture_event = static_cast<const WebGestureEvent*>(
      events[0]->ToEvent()->Event()->web_event.get());
  events[0]->ToEvent()->CallCallback(INPUT_EVENT_ACK_STATE_CONSUMED);

  gesture_event = static_cast<const WebGestureEvent*>(
      events[1]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(0U, gesture_event->data.scroll_update.delta_x);
  EXPECT_EQ(5U, gesture_event->data.scroll_update.delta_y);
  events[1]->ToEvent()->CallCallback(INPUT_EVENT_ACK_STATE_CONSUMED);

  ui::GestureEventDetails gesture_tap_down_details(ui::ET_GESTURE_TAP_DOWN);
  gesture_tap_down_details.set_is_source_touch_event_set_non_blocking(true);
  gesture_tap_down_details.set_device_type(
      ui::GestureDeviceType::DEVICE_TOUCHSCREEN);
  ui::GestureEvent gesture_tap_down(2, 2, 0, ui::EventTimeForNow(),
                                    gesture_tap_down_details);
  view_->OnGestureEvent(&gesture_tap_down);
  base::RunLoop().RunUntilIdle();
  events = GetAndResetDispatchedMessages();

  ui::GestureEventDetails event_details(ui::ET_GESTURE_SCROLL_BEGIN);
  event_details.set_device_type(ui::GestureDeviceType::DEVICE_TOUCHSCREEN);
  ui::GestureEvent scroll_begin(2, 2, 0, ui::EventTimeForNow(), event_details);
  view_->OnGestureEvent(&scroll_begin);
  base::RunLoop().RunUntilIdle();

  events = GetAndResetDispatchedMessages();
  EXPECT_EQ("MouseWheel GestureScrollEnd GestureScrollBegin",
            GetMessageNames(events));
  EXPECT_EQ(3U, events.size());

  wheel_event = static_cast<const WebMouseWheelEvent*>(
      events[0]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(WebMouseWheelEvent::kPhaseEnded, wheel_event->phase);
  EXPECT_EQ(0U, wheel_event->delta_x);
  EXPECT_EQ(0U, wheel_event->delta_y);

  gesture_event = static_cast<const WebGestureEvent*>(
      events[1]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(WebInputEvent::kGestureScrollEnd, gesture_event->GetType());
  EXPECT_EQ(blink::kWebGestureDeviceTouchpad, gesture_event->SourceDevice());

  gesture_event = static_cast<const WebGestureEvent*>(
      events[2]->ToEvent()->Event()->web_event.get());
  EXPECT_EQ(WebInputEvent::kGestureScrollBegin, gesture_event->GetType());
  EXPECT_EQ(blink::kWebGestureDeviceTouchscreen, gesture_event->SourceDevice());
}

TEST_F(RenderWidgetHostViewAuraTest,
       SyntheticFlingCancelAtTouchpadScrollBegin) {
  ui::ScrollEvent scroll_event(ui::ET_SCROLL, gfx::Point(2, 2),
                               ui::EventTimeForNow(), 0, 0, 5, 0, 5, 2);

  // Send the beginning scroll event. This should generate a synthetic fling
  // cancel to cancel any ongoing flings before the start of this scroll.
  view_->OnScrollEvent(&scroll_event);
  base::RunLoop().RunUntilIdle();
  base::Optional<WebGestureEvent> last_gesture =
      widget_host_->GetAndResetLastForwardedGestureEvent();
  ASSERT_TRUE(last_gesture);
  EXPECT_EQ(WebInputEvent::kGestureFlingCancel, last_gesture->GetType());

  // Consume the wheel to prevent gesture scrolls from interfering with the
  // rest of the test.
  MockWidgetInputHandler::MessageVector dispatched_events =
      GetAndResetDispatchedMessages();
  EXPECT_EQ("MouseWheel", GetMessageNames(dispatched_events));
  dispatched_events[0]->ToEvent()->CallCallback(INPUT_EVENT_ACK_STATE_CONSUMED);
  dispatched_events = GetAndResetDispatchedMessages();
  EXPECT_EQ(0U, dispatched_events.size());

  // Send a scroll update. A synthetic fling cancel has already been sent for
  // this sequence, so we should not generate another.
  view_->OnScrollEvent(&scroll_event);
  base::RunLoop().RunUntilIdle();
  last_gesture = widget_host_->GetAndResetLastForwardedGestureEvent();
  EXPECT_FALSE(last_gesture);

  dispatched_events = GetAndResetDispatchedMessages();
  EXPECT_EQ("MouseWheel", GetMessageNames(dispatched_events));
  dispatched_events[0]->ToEvent()->CallCallback(INPUT_EVENT_ACK_STATE_CONSUMED);
  dispatched_events = GetAndResetDispatchedMessages();
  EXPECT_EQ(0U, dispatched_events.size());
}

// Checks that touch-event state is maintained correctly for multiple touch
// points.
TEST_F(RenderWidgetHostViewAuraTest, MultiTouchPointsStates) {
  view_->InitAsFullscreen(parent_view_);
  view_->Show();
  view_->UseFakeDispatcher();

  ui::TouchEvent press0(
      ui::ET_TOUCH_PRESSED, gfx::Point(30, 30), ui::EventTimeForNow(),
      ui::PointerDetails(ui::EventPointerType::POINTER_TYPE_TOUCH, 0));

  view_->OnTouchEvent(&press0);
  view_->GetFocusedWidget()->input_router()->OnSetTouchAction(
      cc::kTouchActionAuto);
  base::RunLoop().RunUntilIdle();

  MockWidgetInputHandler::MessageVector events =
      GetAndResetDispatchedMessages();
  EXPECT_EQ("SetFocus TouchStart", GetMessageNames(events));
  events[1]->ToEvent()->CallCallback(INPUT_EVENT_ACK_STATE_CONSUMED);
  EXPECT_EQ(ui::MotionEvent::Action::DOWN, pointer_state().GetAction());
  EXPECT_EQ(1U, pointer_state().GetPointerCount());
  EXPECT_EQ(1U, view_->dispatcher_->GetAndResetProcessedTouchEventCount());

  ui::TouchEvent move0(
      ui::ET_TOUCH_MOVED, gfx::Point(20, 20), ui::EventTimeForNow(),
      ui::PointerDetails(ui::EventPointerType::POINTER_TYPE_TOUCH, 0));

  view_->OnTouchEvent(&move0);
  base::RunLoop().RunUntilIdle();
  events = GetAndResetDispatchedMessages();
  EXPECT_EQ("TouchMove", GetMessageNames(events));
  events[0]->ToEvent()->CallCallback(INPUT_EVENT_ACK_STATE_CONSUMED);
  EXPECT_EQ(ui::MotionEvent::Action::MOVE, pointer_state().GetAction());
  EXPECT_EQ(1U, pointer_state().GetPointerCount());
  EXPECT_EQ(1U, view_->dispatcher_->GetAndResetProcessedTouchEventCount());

  // For the second touchstart, only the state of the second touch point is
  // StatePressed, the state of the first touch point is StateStationary.
  ui::TouchEvent press1(
      ui::ET_TOUCH_PRESSED, gfx::Point(10, 10), ui::EventTimeForNow(),
      ui::PointerDetails(ui::EventPointerType::POINTER_TYPE_TOUCH, 1));

  view_->OnTouchEvent(&press1);
  base::RunLoop().RunUntilIdle();
  events = GetAndResetDispatchedMessages();
  EXPECT_EQ("TouchStart", GetMessageNames(events));
  events[0]->ToEvent()->CallCallback(INPUT_EVENT_ACK_STATE_CONSUMED);
  EXPECT_EQ(ui::MotionEvent::Action::POINTER_DOWN, pointer_state().GetAction());
  EXPECT_EQ(1, pointer_state().GetActionIndex());
  EXPECT_EQ(2U, pointer_state().GetPointerCount());
  EXPECT_EQ(1U, view_->dispatcher_->GetAndResetProcessedTouchEventCount());

  // For the touchmove of second point, the state of the second touch point is
  // StateMoved, the state of the first touch point is StateStationary.
  ui::TouchEvent move1(
      ui::ET_TOUCH_MOVED, gfx::Point(30, 30), ui::EventTimeForNow(),
      ui::PointerDetails(ui::EventPointerType::POINTER_TYPE_TOUCH, 1));

  view_->OnTouchEvent(&move1);
  base::RunLoop().RunUntilIdle();
  events = GetAndResetDispatchedMessages();
  EXPECT_EQ("TouchMove", GetMessageNames(events));
  events[0]->ToEvent()->CallCallback(INPUT_EVENT_ACK_STATE_CONSUMED);
  EXPECT_EQ(ui::MotionEvent::Action::MOVE, pointer_state().GetAction());
  EXPECT_EQ(2U, pointer_state().GetPointerCount());
  EXPECT_EQ(1U, view_->dispatcher_->GetAndResetProcessedTouchEventCount());

  // For the touchmove of first point, the state of the first touch point is
  // StateMoved, the state of the second touch point is StateStationary.
  ui::TouchEvent move2(
      ui::ET_TOUCH_MOVED, gfx::Point(10, 10), ui::EventTimeForNow(),
      ui::PointerDetails(ui::EventPointerType::POINTER_TYPE_TOUCH, 0));

  view_->OnTouchEvent(&move2);
  base::RunLoop().RunUntilIdle();
  events = GetAndResetDispatchedMessages();
  EXPECT_EQ("TouchMove", GetMessageNames(events));
  events[0]->ToEvent()->CallCallback(INPUT_EVENT_ACK_STATE_CONSUMED);
  EXPECT_EQ(ui::MotionEvent::Action::MOVE, pointer_state().GetAction());
  EXPECT_EQ(2U, pointer_state().GetPointerCount());
  EXPECT_EQ(1U, view_->dispatcher_->GetAndResetProcessedTouchEventCount());

  ui::TouchEvent cancel0(
      ui::ET_TOUCH_CANCELLED, gfx::Point(10, 10), ui::EventTimeForNow(),
      ui::PointerDetails(ui::EventPointerType::POINTER_TYPE_TOUCH, 0));

  // For the touchcancel, only the state of the current touch point is
  // StateCancelled, the state of the other touch point is StateStationary.
  view_->OnTouchEvent(&cancel0);
  base::RunLoop().RunUntilIdle();
  events = GetAndResetDispatchedMessages();
  EXPECT_EQ("TouchCancel", GetMessageNames(events));
  EXPECT_EQ(1U, pointer_state().GetPointerCount());
  EXPECT_EQ(1U, view_->dispatcher_->GetAndResetProcessedTouchEventCount());

  ui::TouchEvent cancel1(
      ui::ET_TOUCH_CANCELLED, gfx::Point(30, 30), ui::EventTimeForNow(),
      ui::PointerDetails(ui::EventPointerType::POINTER_TYPE_TOUCH, 1));

  view_->OnTouchEvent(&cancel1);
  base::RunLoop().RunUntilIdle();
  events = GetAndResetDispatchedMessages();
  EXPECT_EQ("TouchCancel", GetMessageNames(events));
  EXPECT_EQ(<