Move ownership of ChildFrameCompositingHelper from frame to proxy.

content/browser/frame_host/render_frame_host_manager.h

Index: content/browser/frame_host/render_frame_host_manager.h
diff --git a/content/browser/frame_host/render_frame_host_manager.h b/content/browser/frame_host/render_frame_host_manager.h
index 102d3b76e66dc2b396bd4a9865170dac8e0675f3..35abab1668d34ac2be11023d1f37d7b9747aca41 100644
--- a/content/browser/frame_host/render_frame_host_manager.h
+++ b/content/browser/frame_host/render_frame_host_manager.h
@@ -154,6 +154,8 @@ class CONTENT_EXPORT RenderFrameHostManager : public NotificationObserver {
   // there is no current one.
   RenderWidgetHostView* GetRenderWidgetHostView() const;
 
+  RenderFrameProxyHost* GetProxyToParent();
+
   // Returns the pending RenderFrameHost, or NULL if there is no pending one.
   RenderFrameHostImpl* pending_frame_host() const {
     return pending_render_frame_host_.get();
@@ -476,13 +478,6 @@ class CONTENT_EXPORT RenderFrameHostManager : public NotificationObserver {
 
   NotificationRegistrar registrar_;
 
-  // When |render_frame_host_| is in a different process from its parent in
-  // the frame tree, this class connects its associated RenderWidgetHostView
-  // to the proxy RenderFrameHost for the parent's renderer process. NULL
-  // when |render_frame_host_| is the frame tree root or is in the same
-  // process as its parent.
-  CrossProcessFrameConnector* cross_process_frame_connector_;
-
   base::WeakPtrFactory<RenderFrameHostManager> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderFrameHostManager);