Introduce RenderFrameProxyHost object and use it in RFHM.

content/browser/frame_host/render_frame_host_impl.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_impl.h"
 
 #include "base/containers/hash_tables.h"
 #include "base/lazy_instance.h"
 #include "base/metrics/user_metrics_action.h"
 #include "content/browser/child_process_security_policy_impl.h"
@@ skipping 50 matching lines @@
     FrameTree* frame_tree,
     FrameTreeNode* frame_tree_node,
     int routing_id,
     bool is_swapped_out)
     : render_view_host_(render_view_host),
       delegate_(delegate),
       cross_process_frame_connector_(NULL),
       frame_tree_(frame_tree),
       frame_tree_node_(frame_tree_node),
       routing_id_(routing_id),
-      is_swapped_out_(is_swapped_out) {
+      is_swapped_out_(is_swapped_out),
+      created_for_pending_(!is_swapped_out) {
   frame_tree_->RegisterRenderFrameHost(this);
   GetProcess()->AddRoute(routing_id_, this);
   g_routing_id_frame_map.Get().insert(std::make_pair(
       RenderFrameHostID(GetProcess()->GetID(), routing_id_),
       this));
 }
 
 RenderFrameHostImpl::~RenderFrameHostImpl() {
   GetProcess()->RemoveRoute(routing_id_);
   g_routing_id_frame_map.Get().erase(
@@ skipping 623 matching lines @@
                                       const gfx::Point& end) {
   Send(new InputMsg_SelectRange(routing_id_, start, end));
 }
 
 void RenderFrameHostImpl::ExtendSelectionAndDelete(size_t before,
                                                    size_t after) {
   Send(new FrameMsg_ExtendSelectionAndDelete(routing_id_, before, after));
 }
 
 }  // namespace content