Move out DidStartProvisionalLoad from WebContentsImpl into Navigator.

content/browser/frame_host/render_frame_host_factory.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/render_frame_host_factory.h"
 
 #include "base/logging.h"
+#include "content/browser/frame_host/frame_tree_node.h"
 #include "content/browser/frame_host/render_frame_host_impl.h"
 
 namespace content {
 
 // static
 RenderFrameHostFactory* RenderFrameHostFactory::factory_ = NULL;
 
 // static
 scoped_ptr<RenderFrameHostImpl> RenderFrameHostFactory::Create(
     RenderViewHostImpl* render_view_host,
     RenderFrameHostDelegate* delegate,
     FrameTree* frame_tree,
+    FrameTreeNode* frame_tree_node,
     int routing_id,
     bool is_swapped_out) {
   if (factory_) {
     return factory_->CreateRenderFrameHost(render_view_host,
                                            delegate,
                                            frame_tree,
+                                           frame_tree_node,
                                            routing_id,
                                            is_swapped_out).Pass();
   }
   return make_scoped_ptr(new RenderFrameHostImpl(
-      render_view_host, delegate, frame_tree, routing_id, is_swapped_out));
+      render_view_host, delegate, frame_tree, frame_tree_node, routing_id,
+      is_swapped_out));
 }
 
 // static
 void RenderFrameHostFactory::RegisterFactory(RenderFrameHostFactory* factory) {
   DCHECK(!factory_) << "Can't register two factories at once.";
   factory_ = factory;
 }
 
 // static
 void RenderFrameHostFactory::UnregisterFactory() {
   DCHECK(factory_) << "No factory to unregister.";
   factory_ = NULL;
 }
 
 }  // namespace content