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

content/test/test_render_frame_host_factory.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_TEST_TEST_RENDER_FRAME_HOST_FACTORY_H_
 #define CONTENT_TEST_TEST_RENDER_FRAME_HOST_FACTORY_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/browser/frame_host/render_frame_host_factory.h"
 
 namespace content {
 
 // Manages creation of the RenderFrameHostImpls; when registered, all created
 // RenderFrameHostsImpls will be TestRenderFrameHosts. This
 // automatically registers itself when it goes in scope, and unregisters itself
 // when it goes out of scope. Since you can't have more than one factory
 // registered at a time, you can only have one of these objects at a time.
 class TestRenderFrameHostFactory : public RenderFrameHostFactory {
  public:
   TestRenderFrameHostFactory();
   ~TestRenderFrameHostFactory() override;
 
  protected:
   // RenderFrameHostFactory implementation.
   scoped_ptr<RenderFrameHostImpl> CreateRenderFrameHost(
       RenderViewHostImpl* render_view_host,
       RenderFrameHostDelegate* delegate,
+      RenderWidgetHostDelegate* rwh_delegate,
       FrameTree* frame_tree,
       FrameTreeNode* frame_tree_node,
       int routing_id,
       int flags) override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(TestRenderFrameHostFactory);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_TEST_TEST_RENDER_FRAME_HOST_FACTORY_H_