[cc] Pass on BeginFrameAcks from CompositorEBFS through RWHVAura, DFH.

content/browser/renderer_host/render_widget_host_view_aura.h

 // 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.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <map>
 #include <memory>
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "build/build_config.h"
+#include "cc/output/begin_frame_args.h"
 #include "cc/scheduler/begin_frame_source.h"
 #include "content/browser/accessibility/browser_accessibility_manager.h"
 #include "content/browser/compositor/image_transport_factory.h"
 #include "content/browser/compositor/owned_mailbox.h"
 #include "content/browser/renderer_host/render_widget_host_view_base.h"
 #include "content/browser/renderer_host/render_widget_host_view_event_handler.h"
 #include "content/browser/renderer_host/resize_lock.h"
 #include "content/browser/renderer_host/text_input_manager.h"
 #include "content/common/content_export.h"
 #include "content/common/cursors/webcursor.h"
@@ skipping 125 matching lines @@
   InputEventAckState FilterInputEvent(
       const blink::WebInputEvent& input_event) override;
   BrowserAccessibilityManager* CreateBrowserAccessibilityManager(
       BrowserAccessibilityDelegate* delegate, bool for_root_frame) override;
   gfx::AcceleratedWidget AccessibilityGetAcceleratedWidget() override;
   gfx::NativeViewAccessible AccessibilityGetNativeViewAccessible() override;
   bool LockMouse() override;
   void UnlockMouse() override;
   void OnSwapCompositorFrame(uint32_t compositor_frame_sink_id,
                              cc::CompositorFrame frame) override;
+  void OnBeginFrameDidNotSwap(const cc::BeginFrameAck& ack) override;
   void ClearCompositorFrame() override;
   void DidStopFlinging() override;
   void OnDidNavigateMainFrameToNewPage() override;
   cc::FrameSinkId GetFrameSinkId() override;
   cc::FrameSinkId FrameSinkIdAtPoint(cc::SurfaceHittestDelegate* delegate,
                                      const gfx::Point& point,
                                      gfx::Point* transformed_point) override;
   void ProcessMouseEvent(const blink::WebMouseEvent& event,
                          const ui::LatencyInfo& latency) override;
   void ProcessMouseWheelEvent(const blink::WebMouseWheelEvent& event,
@@ skipping 176 matching lines @@
                            DiscardDelegatedFramesWithLocking);
   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest, SoftwareDPIChange);
   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
                            UpdateCursorIfOverSelf);
   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
                            VisibleViewportTest);
   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
                            OverscrollResetsOnBlur);
   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
                            FinishCompositionByMouse);
+  FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
+                           ForwardsBeginFrameAcks);
   FRIEND_TEST_ALL_PREFIXES(WebContentsViewAuraTest,
                            WebContentsViewReparent);
 
   class WindowObserver;
   friend class WindowObserver;
 
   class WindowAncestorObserver;
   friend class WindowAncestorObserver;
 
   void CreateAuraWindow(ui::wm::WindowType type);
@@ skipping 207 matching lines @@
   std::unique_ptr<RenderWidgetHostViewEventHandler> event_handler_;
 
   base::WeakPtrFactory<RenderWidgetHostViewAura> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewAura);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_