Messages needed for webview compositor communication.

content/browser/browser_plugin/browser_plugin_guest.h

Index: content/browser/browser_plugin/browser_plugin_guest.h
diff --git a/content/browser/browser_plugin/browser_plugin_guest.h b/content/browser/browser_plugin/browser_plugin_guest.h
index 04125da43a543a0556bbdab4dfbddc68fbf34213..662a884920e55cc823fd90aaedb9d54d6e52d361 100644
--- a/content/browser/browser_plugin/browser_plugin_guest.h
+++ b/content/browser/browser_plugin/browser_plugin_guest.h
@@ -234,6 +234,13 @@ class CONTENT_EXPORT BrowserPluginGuest : public NotificationObserver,
 #endif
                                const gfx::Size& damage_view_size,
                                float scale_factor);
+  // Overridden in tests.
+  virtual void SetCompositingBufferData(int gpu_process_id,
+                                        uint32 client_id,
+                                        uint32 context_id,
+                                        uint32 texture_id_0,
+                                        uint32 texture_id_1,
+                                        uint32 sync_point);
 
   gfx::Point GetScreenCoordinates(const gfx::Point& relative_position) const;
 
@@ -297,6 +304,9 @@ class CONTENT_EXPORT BrowserPluginGuest : public NotificationObserver,
   gfx::Size max_auto_size_;
   gfx::Size min_auto_size_;
 
+  // Hardware Accelerated Surface Params
+  gfx::GLSurfaceHandle surface_handle_;
+
   DISALLOW_COPY_AND_ASSIGN(BrowserPluginGuest);
 };