Move out DidStartProvisionalLoad from WebContentsImpl into Navigator.

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/stl_util.h"
 #include "content/browser/frame_host/navigator.h"
 #include "content/browser/frame_host/render_frame_host_impl.h"
 
 namespace content {
 
 const int64 FrameTreeNode::kInvalidFrameId = -1;
 int64 FrameTreeNode::next_frame_tree_node_id_ = 1;
 
 FrameTreeNode::FrameTreeNode(Navigator* navigator,
                              RenderFrameHostDelegate* render_frame_delegate,
                              RenderViewHostDelegate* render_view_delegate,
                              RenderWidgetHostDelegate* render_widget_delegate,
                              RenderFrameHostManager::Delegate* manager_delegate,
                              int64 frame_id,
-                             const std::string& name,
-                             scoped_ptr<RenderFrameHostImpl> render_frame_host)
+                             const std::string& name)
   : navigator_(navigator),
     render_manager_(render_frame_delegate,
                     render_view_delegate,
                     render_widget_delegate,
                     manager_delegate),
     frame_tree_node_id_(next_frame_tree_node_id_++),
     frame_id_(frame_id),
     frame_name_(name),
     owns_render_frame_host_(true),
-    render_frame_host_(render_frame_host.release()) {
+    render_frame_host_(NULL) {
 }
 
 FrameTreeNode::~FrameTreeNode() {
   if (owns_render_frame_host_)
     delete render_frame_host_;
 }
 
 void FrameTreeNode::AddChild(scoped_ptr<FrameTreeNode> child) {
   children_.push_back(child.release());
 }
@@ skipping 18 matching lines @@
 
   // 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.
   children_.clear();
 
   render_frame_host_ = new_render_frame_host;
 }
 
 }  // namespace content