Progress towards fixing 77536

content/renderer/render_widget.h

Index: content/renderer/render_widget.h
diff --git a/content/renderer/render_widget.h b/content/renderer/render_widget.h
index a3ce7b069ab95cd5274fcb2942a7a94eff839b2e..cb9ae4552521ff428ae88fd457d111bbcdc7a400 100644
--- a/content/renderer/render_widget.h
+++ b/content/renderer/render_widget.h
@@ -122,6 +122,11 @@ class RenderWidget : public IPC::Channel::Listener,
   // Close the underlying WebWidget.
   virtual void Close();
 
+  // TODO(backer): Where does this go? is it public?
+  gfx::PluginWindowHandle compositing_surface() const {
+    return compositing_surface_;
+  }
+
  protected:
   // Friend RefCounted so that the dtor can be non-public. Using this class
   // without ref-counting is an error.
@@ -143,7 +148,8 @@ class RenderWidget : public IPC::Channel::Listener,
               IPC::SyncMessage* create_widget_message);
 
   // Finishes creation of a pending view started with Init.
-  void CompleteInit(gfx::NativeViewId parent);
+  void CompleteInit(gfx::NativeViewId parent,
+                    gfx::PluginWindowHandle compositing_surface);
 
   // Paints the given rectangular region of the WebWidget into canvas (a
   // shared memory segment returned by AllocPaintBuf on Windows). The caller
@@ -168,7 +174,8 @@ class RenderWidget : public IPC::Channel::Listener,
 
   // RenderWidget IPC message handlers
   void OnClose();
-  void OnCreatingNewAck(gfx::NativeViewId parent);
+  void OnCreatingNewAck(gfx::NativeViewId parent,
+                        gfx::PluginWindowHandle compositing_surface);
   virtual void OnResize(const gfx::Size& new_size,
                         const gfx::Rect& resizer_rect);
   virtual void OnWasHidden();
@@ -366,6 +373,10 @@ class RenderWidget : public IPC::Channel::Listener,
   // compositor.
   bool is_accelerated_compositing_active_;
 
+  // Handle to a surface that is drawn to when accelerated compositing is
+  // active.
+  gfx::PluginWindowHandle compositing_surface_;
+
   base::Time animation_floor_time_;
   bool animation_update_pending_;
   bool animation_task_posted_;