cc: Make scheduling be driven by vsync for android webview.

content/browser/android/in_process/synchronous_compositor_output_surface.h

Index: content/browser/android/in_process/synchronous_compositor_output_surface.h
diff --git a/content/browser/android/in_process/synchronous_compositor_output_surface.h b/content/browser/android/in_process/synchronous_compositor_output_surface.h
index 5262b7eeac85d80463312c01ae38ad564e104b23..26934ca02e9eae4eb7f24b77a2f81f341e90bb01 100644
--- a/content/browser/android/in_process/synchronous_compositor_output_surface.h
+++ b/content/browser/android/in_process/synchronous_compositor_output_surface.h
@@ -32,7 +32,6 @@ namespace content {
 
 class FrameSwapMessageQueue;
 class SynchronousCompositorClient;
-class SynchronousCompositorExternalBeginFrameSource;
 class SynchronousCompositorOutputSurface;
 class WebGraphicsContext3DCommandBufferImpl;
 
@@ -56,9 +55,7 @@ class SynchronousCompositorOutputSurface
   virtual bool BindToClient(cc::OutputSurfaceClient* surface_client) override;
   virtual void Reshape(const gfx::Size& size, float scale_factor) override;
   virtual void SwapBuffers(cc::CompositorFrame* frame) override;
-
-  void SetBeginFrameSource(
-      SynchronousCompositorExternalBeginFrameSource* begin_frame_source);
+  virtual void Invalidate() override;
 
   // Partial SynchronousCompositor API implementation.
   bool InitializeHwDraw(
@@ -74,6 +71,7 @@ class SynchronousCompositorOutputSurface
   void ReturnResources(const cc::CompositorFrameAck& frame_ack);
   scoped_ptr<cc::CompositorFrame> DemandDrawSw(SkCanvas* canvas);
   void SetMemoryPolicy(size_t bytes_limit);
+  void SetInvalidateCallback(const base::Closure& callback);
   void SetTreeActivationCallback(const base::Closure& callback);
   void GetMessagesToDeliver(ScopedVector<IPC::Message>* messages);
 
@@ -103,12 +101,11 @@ class SynchronousCompositorOutputSurface
 
   cc::ManagedMemoryPolicy memory_policy_;
 
-  cc::OutputSurfaceClient* output_surface_client_;
   scoped_ptr<cc::CompositorFrame> frame_holder_;
 
   scoped_refptr<FrameSwapMessageQueue> frame_swap_message_queue_;
 
-  SynchronousCompositorExternalBeginFrameSource* begin_frame_source_;
+  base::Closure invalidate_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(SynchronousCompositorOutputSurface);
 };