Plumb cc::LatencyInfo through command buffer and output surface

content/renderer/gpu/compositor_output_surface.h

Index: content/renderer/gpu/compositor_output_surface.h
diff --git a/content/renderer/gpu/compositor_output_surface.h b/content/renderer/gpu/compositor_output_surface.h
index 896325c462b84faaf03d62c4867a6e3e89f14d6d..76fa6b6bf8858c1c77f044f1c1b91e9433cd0ba8 100644
--- a/content/renderer/gpu/compositor_output_surface.h
+++ b/content/renderer/gpu/compositor_output_surface.h
@@ -29,6 +29,8 @@ class CompositorFrameAck;
 
 namespace content {
 
+class CommandBufferProxyImpl;
+
 // This class can be created only on the main thread, but then becomes pinned
 // to a fixed thread when bindToClient is called.
 class CompositorOutputSurface
@@ -40,12 +42,14 @@ class CompositorOutputSurface
 
   CompositorOutputSurface(int32 routing_id,
                           WebKit::WebGraphicsContext3D* context3d,
+                          CommandBufferProxyImpl* command_buffer_proxy,
                           cc::SoftwareOutputDevice* software);
   virtual ~CompositorOutputSurface();
 
   // cc::OutputSurface implementation.
   virtual bool BindToClient(cc::OutputSurfaceClient* client) OVERRIDE;
   virtual void SendFrameToParentCompositor(cc::CompositorFrame*) OVERRIDE;
+  virtual void SetLatencyInfo(const cc::LatencyInfo&) OVERRIDE;
 
   // TODO(epenner): This seems out of place here and would be a better fit
   // int CompositorThread after it is fully refactored (http://crbug/170828)
@@ -78,6 +82,7 @@ class CompositorOutputSurface
   void OnMessageReceived(const IPC::Message& message);
   void OnUpdateVSyncParameters(
       base::TimeTicks timebase, base::TimeDelta interval);
+  void OnReceivedLatencyInfo(const cc::LatencyInfo&);
   bool Send(IPC::Message* message);
 
   scoped_refptr<IPC::ForwardingMessageFilter> output_surface_filter_;
@@ -85,6 +90,7 @@ class CompositorOutputSurface
   int routing_id_;
   bool prefers_smoothness_;
   base::PlatformThreadId main_thread_id_;
+  CommandBufferProxyImpl* command_buffer_proxy_;
 };
 
 }  // namespace content