Add IPC messages to transfer compositor protos

content/browser/renderer_host/render_widget_host_impl.h

Index: content/browser/renderer_host/render_widget_host_impl.h
diff --git a/content/browser/renderer_host/render_widget_host_impl.h b/content/browser/renderer_host/render_widget_host_impl.h
index b40c33fe8759dfaf7b4e832b7d373d0e2606ef78..6a6f1b5962a67ffe2866d147ea3f58490b008472 100644
--- a/content/browser/renderer_host/render_widget_host_impl.h
+++ b/content/browser/renderer_host/render_widget_host_impl.h
@@ -159,6 +159,7 @@ class CONTENT_EXPORT RenderWidgetHostImpl : public RenderWidgetHost,
   void RemoveMouseEventCallback(const MouseEventCallback& callback) override;
   void GetWebScreenInfo(blink::WebScreenInfo* result) override;
   bool GetScreenColorProfile(std::vector<char>* color_profile) override;
+  void HandleCompositorProto(const std::vector<char>& proto) override;
 
   // Notification that the screen info has changed.
   void NotifyScreenInfoChanged();
@@ -278,6 +279,8 @@ class CONTENT_EXPORT RenderWidgetHostImpl : public RenderWidgetHost,
   // yet.
   void OnFirstPaintAfterLoad();
 
+  void OnHandleCompositorProto(const std::vector<char>& proto);

[no sievers, 2015/11/14 00:13:43]

nit: can it be private?

[David Trainor- moved to gerrit, 2015/11/16 04:33:58]

Done.

+
   // Forwards the given message to the renderer. These are called by the view
   // when it has received a message.
   void ForwardGestureEventWithLatencyInfo(