Revert of Start using RenderFrameProxyHost objects.

content/renderer/render_frame_impl.h

Index: content/renderer/render_frame_impl.h
diff --git a/content/renderer/render_frame_impl.h b/content/renderer/render_frame_impl.h
index b18b96bbd9374a83ce7fcf38612c738d31e32cc7..10adcda4123e4b7d17c555a230794bc0de378f3f 100644
--- a/content/renderer/render_frame_impl.h
+++ b/content/renderer/render_frame_impl.h
@@ -87,19 +87,8 @@
   // Creates a new RenderFrame. |render_view| is the RenderView object that this
   // frame belongs to.
   // Callers *must* call |SetWebFrame| immediately after creation.
-  // Note: This is called only when RenderFrame is created by Blink through
-  // createChildFrame.
   // TODO(creis): We should structure this so that |SetWebFrame| isn't needed.
   static RenderFrameImpl* Create(RenderViewImpl* render_view, int32 routing_id);
-
-  // Creates a new RenderFrame with |routing_id| as a child of the RenderFrame
-  // identified by |parent_routing_id| or as the top-level frame if the latter
-  // is MSG_ROUTING_NONE. It creates the Blink WebLocalFrame and inserts it in
-  // the proper place in the frame tree.
-  // Note: This is called only when RenderFrame is being created in response to
-  // IPC message from the browser process. All other frame creation is driven
-  // through Blink and Create.
-  static void CreateFrame(int routing_id, int parent_routing_id);
 
   // Returns the RenderFrameImpl for the given routing ID.
   static RenderFrameImpl* FromRoutingID(int routing_id);