Provide a vsync notification to the renderer

cc/layer_tree_host_impl.h

 // Copyright 2011 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 CC_LAYER_TREE_HOST_IMPL_H_
 #define CC_LAYER_TREE_HOST_IMPL_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/time.h"
@@ skipping 29 matching lines @@
 class TopControlsManager;
 struct RendererCapabilities;
 struct RenderingStats;
 
 // LayerTreeHost->Proxy callback interface.
 class LayerTreeHostImplClient {
 public:
     virtual void didLoseOutputSurfaceOnImplThread() = 0;
     virtual void onSwapBuffersCompleteOnImplThread() = 0;
     virtual void onVSyncParametersChanged(base::TimeTicks timebase, base::TimeDelta interval) = 0;
+    virtual void didVSync(base::TimeTicks frameTime) = 0;
     virtual void onCanDrawStateChanged(bool canDraw) = 0;
     virtual void onHasPendingTreeStateChanged(bool hasPendingTree) = 0;
     virtual void setNeedsRedrawOnImplThread() = 0;
     virtual void didUploadVisibleHighResolutionTileOnImplThread() = 0;
     virtual void setNeedsCommitOnImplThread() = 0;
     virtual void setNeedsManageTilesOnImplThread() = 0;
     virtual void postAnimationEventsToMainThreadOnImplThread(scoped_ptr<AnimationEventsVector>, base::Time wallClockTime) = 0;
     // Returns true if resources were deleted by this call.
     virtual bool reduceContentsTextureMemoryOnImplThread(size_t limitBytes, int priorityCutoff) = 0;
     virtual void reduceWastedContentsTextureMemoryOnImplThread() = 0;
@@ skipping 74 matching lines @@
     virtual bool hasImplThread() const OVERRIDE;
     virtual bool shouldClearRootRenderPass() const OVERRIDE;
     virtual CompositorFrameMetadata makeCompositorFrameMetadata() const OVERRIDE;
 
     // TileManagerClient implementation.
     virtual void ScheduleManageTiles() OVERRIDE;
     virtual void DidUploadVisibleHighResolutionTile() OVERRIDE;
 
     // OutputSurfaceClient implementation.
     virtual void OnVSyncParametersChanged(base::TimeTicks timebase, base::TimeDelta interval) OVERRIDE;
+    virtual void DidVSync(base::TimeTicks frameTime) OVERRIDE;
     virtual void OnSendFrameToParentCompositorAck(const CompositorFrameAck&) OVERRIDE;
 
     // Called from LayerTreeImpl.
     void OnCanDrawStateChangedForTree(LayerTreeImpl*);
 
     // Implementation
     bool canDraw();
     OutputSurface* outputSurface() const;
+    void enableVSyncNotification(bool enable);
 
     std::string layerTreeAsText() const;
     std::string layerTreeAsJson() const;
 
     void finishAllRendering();
     int sourceAnimationFrameNumber() const;
 
     bool initializeRenderer(scoped_ptr<OutputSurface>);
     bool isContextLost();
     TileManager* tileManager() { return m_tileManager.get(); }
@@ skipping 201 matching lines @@
     base::TimeTicks m_currentFrameTime;
 
     scoped_ptr<AnimationRegistrar> m_animationRegistrar;
 
     DISALLOW_COPY_AND_ASSIGN(LayerTreeHostImpl);
 };
 
 }  // namespace cc
 
 #endif  // CC_LAYER_TREE_HOST_IMPL_H_