Move out DidStartProvisionalLoad from WebContentsImpl into Navigator.

content/test/test_render_frame_host.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_H_
 #define CONTENT_TEST_TEST_RENDER_FRAME_HOST_H_
 
 #include "base/basictypes.h"
 #include "content/browser/frame_host/render_frame_host_impl.h"
 
 namespace content {
 
 class TestRenderFrameHost : public RenderFrameHostImpl {
  public:
   TestRenderFrameHost(RenderViewHostImpl* render_view_host,
                       RenderFrameHostDelegate* delegate,
                       FrameTree* frame_tree,
+                      FrameTreeNode* frame_tree_node,
                       int routing_id,
                       bool is_swapped_out);
   virtual ~TestRenderFrameHost();
 
   // TODO(nick): As necessary for testing, override behavior of RenderFrameHost
   // here.
 
  private:
   DISALLOW_COPY_AND_ASSIGN(TestRenderFrameHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_TEST_TEST_RENDER_FRAME_HOST_H_