Make RenderFrame(Host) own a RenderWidget(Host).

content/browser/frame_host/frame_tree_node.cc

 // 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.
 
 #include "content/browser/frame_host/frame_tree_node.h"
 
 #include <queue>
 
 #include "base/command_line.h"
 #include "base/stl_util.h"
@@ skipping 70 matching lines @@
     children_.weak_erase(iter);
     node_to_delete->set_parent(NULL);
     node_to_delete.reset();
   }
 }
 
 void FrameTreeNode::ResetForNewProcess() {
   current_url_ = GURL();
 
   // The RenderFrame no longer exists and will need to be created again.
-  current_frame_host()->set_render_frame_created(false);
+  current_frame_host()->SetRenderFrameCreated(false);
 
   // The children may not have been cleared if a cross-process navigation
   // commits before the old process cleans everything up.  Make sure the child
   // nodes get deleted before swapping to a new process.
   ScopedVector<FrameTreeNode> old_children = children_.Pass();
   old_children.clear();  // May notify observers.
 }
 
 }  // namespace content