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 255c61865d849155a0627ba05e9768fdcf5ac2eb..683744f3484f8d5a0566c8d966741f398450ecef 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 WebGraphicsContext3DCommandBufferImpl;
+
 // This class can be created only on the main thread, but then becomes pinned
 // to a fixed thread when bindToClient is called.
 class CompositorOutputSurface
@@ -39,13 +41,15 @@ class CompositorOutputSurface
       base::TaskRunner* target_task_runner);
 
   CompositorOutputSurface(int32 routing_id,
-                          WebKit::WebGraphicsContext3D* context3d,
+                          WebGraphicsContext3DCommandBufferImpl* context3d,
                           cc::SoftwareOutputDevice* software);
   virtual ~CompositorOutputSurface();
 
   // cc::OutputSurface implementation.
   virtual bool BindToClient(cc::OutputSurfaceClient* client) OVERRIDE;
   virtual void SendFrameToParentCompositor(cc::CompositorFrame*) OVERRIDE;
+  virtual void PostSubBuffer(gfx::Rect rect, const cc::LatencyInfo&) OVERRIDE;
+  virtual void SwapBuffers(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)