Subframes in inner WebContents should not create proxies in process of outer WebContents.

content/browser/frame_host/render_frame_host_manager.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_MANAGER_H_
 #define CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_MANAGER_H_
 
 #include <list>
 #include <map>
 
@@ skipping 215 matching lines @@
     return render_frame_host_.get();
   }
 
   // TODO(creis): Remove this when we no longer use RVH for navigation.
   RenderViewHostImpl* current_host() const;
 
   // Returns the view associated with the current RenderViewHost, or NULL if
   // there is no current one.
   RenderWidgetHostView* GetRenderWidgetHostView() const;
 
-  // Returns whether this manager belongs to a FrameTreeNode that is a main
-  // frame in an inner WebContents.
-  // TODO(lazyboy): Make this work correctly for subframes inside inner
-  // WebContents too.
+  // Returns whether this manager belongs to a FrameTreeNode that belongs to an
+  // inner WebContents.
   bool ForInnerDelegate();
 
   // Returns the RenderWidgetHost of the outer WebContents (if any) that can be
   // used to fetch the last keyboard event.
   // TODO(lazyboy): This can be removed once input events are sent directly to
   // remote frames.
   RenderWidgetHostImpl* GetOuterRenderWidgetHostForKeyboardInput();
 
   RenderFrameProxyHost* GetProxyToParent();
 
@@ skipping 548 matching lines @@
   bool should_reuse_web_ui_;
 
   base::WeakPtrFactory<RenderFrameHostManager> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderFrameHostManager);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_MANAGER_H_