Plumb cc::LatencyInfo through command buffer and output surface

content/browser/gpu/gpu_process_host_ui_shim.h

Index: content/browser/gpu/gpu_process_host_ui_shim.h
diff --git a/content/browser/gpu/gpu_process_host_ui_shim.h b/content/browser/gpu/gpu_process_host_ui_shim.h
index 27f1e9a8effccfc783eee9efd8d7ef03b2ab2e2d..243cfd17cbc57d28eeb2be8f2bf0e9eda3601841 100644
--- a/content/browser/gpu/gpu_process_host_ui_shim.h
+++ b/content/browser/gpu/gpu_process_host_ui_shim.h
@@ -28,6 +28,10 @@ struct GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params;
 struct GpuHostMsg_AcceleratedSurfacePostSubBuffer_Params;
 struct GpuHostMsg_AcceleratedSurfaceRelease_Params;
 
+namespace cc {
+struct LatencyInfo;
+}
+
 namespace gfx {
 class Size;
 }
@@ -103,6 +107,7 @@ class GpuProcessHostUIShim : public IPC::Listener,
   void OnUpdateVSyncParameters(int surface_id,
                                base::TimeTicks timebase,
                                base::TimeDelta interval);
+  void OnFrameDrawn(const cc::LatencyInfo& latency_info);
 
   // The serial number of the GpuProcessHost / GpuProcessHostUIShim pair.
   int host_id_;