[cc] Forward BeginFrameAcks through RWHVChildFrame.

content/browser/frame_host/render_widget_host_view_child_frame.h

 // Copyright 2014 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_FRAME_HOST_RENDER_WIDGET_HOST_VIEW_CHILD_FRAME_H_
 #define CONTENT_BROWSER_FRAME_HOST_RENDER_WIDGET_HOST_VIEW_CHILD_FRAME_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <deque>
 #include <memory>
 #include <vector>
 
 #include "base/callback.h"
+#include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "build/build_config.h"
 #include "cc/resources/returned_resource.h"
 #include "cc/scheduler/begin_frame_source.h"
 #include "cc/surfaces/compositor_frame_sink_support_client.h"
 #include "cc/surfaces/surface_info.h"
 #include "cc/surfaces/surface_sequence.h"
 #include "content/browser/compositor/image_transport_factory.h"
 #include "content/browser/renderer_host/event_with_latency_info.h"
 #include "content/browser/renderer_host/render_widget_host_view_base.h"
@@ skipping 75 matching lines @@
   void RenderProcessGone(base::TerminationStatus status,
                          int error_code) override;
   void Destroy() override;
   void SetTooltipText(const base::string16& tooltip_text) override;
   bool HasAcceleratedSurface(const gfx::Size& desired_size) override;
   void GestureEventAck(const blink::WebGestureEvent& event,
                        InputEventAckState ack_result) override;
   void OnSwapCompositorFrame(uint32_t compositor_frame_sink_id,
                              const cc::LocalSurfaceId& local_surface_id,
                              cc::CompositorFrame frame) override;
+  void OnBeginFrameDidNotSwap(const cc::BeginFrameAck& ack) override;
   // Since the URL of content rendered by this class is not displayed in
   // the URL bar, this method does not need an implementation.
   void ClearCompositorFrame() override {}
   gfx::Rect GetBoundsInRootWindow() override;
   void ProcessAckedTouchEvent(const TouchEventWithLatencyInfo& touch,
                               InputEventAckState ack_result) override;
   bool LockMouse() override;
   void UnlockMouse() override;
   cc::FrameSinkId GetFrameSinkId() override;
   void ProcessKeyboardEvent(const NativeWebKeyboardEvent& event) override;
@@ skipping 58 matching lines @@
   void UnregisterFrameSinkId();
 
   void UpdateViewportIntersection(const gfx::Rect& viewport_intersection);
 
   bool has_frame() { return has_frame_; }
 
  protected:
   friend class RenderWidgetHostView;
   friend class RenderWidgetHostViewChildFrameTest;
   friend class RenderWidgetHostViewGuestSurfaceTest;
+  FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewChildFrameTest,
+                           ForwardsBeginFrameAcks);
 
   explicit RenderWidgetHostViewChildFrame(RenderWidgetHost* widget);
   void Init();
 
   void ProcessCompositorFrame(uint32_t compositor_frame_sink_id,
                               const cc::LocalSurfaceId& local_surface_id,
                               cc::CompositorFrame frame);
 
   void SendSurfaceInfoToEmbedder();
 
@@ skipping 54 matching lines @@
 
   bool has_frame_ = false;
 
   base::WeakPtrFactory<RenderWidgetHostViewChildFrame> weak_factory_;
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewChildFrame);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_RENDER_WIDGET_HOST_VIEW_CHILD_FRAME_H_