Remove magic iframe load transfer support.

content/browser/renderer_host/resource_dispatcher_host_impl.h

 // Copyright (c) 2012 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.
 
 // This is the browser side of the resource dispatcher, it receives requests
 // from the child process (i.e. [Renderer, Plugin, Worker]ProcessHost), and
 // dispatches them to URLRequests. It then forwards the messages from the
 // URLRequests back to the correct process for handling.
 //
 // See http://dev.chromium.org/developers/design-documents/multi-process-resource-loading
@@ skipping 384 matching lines @@
                   const ResourceHostMsg_Request& request_data,
                   IPC::Message* sync_result);
   void BeginRequest(int request_id,
                     const ResourceHostMsg_Request& request_data,
                     IPC::Message* sync_result,  // only valid for sync
                     int route_id);  // only valid for async
   void OnDataReceivedACK(int request_id);
   void OnDataDownloadedACK(int request_id);
   void OnUploadProgressACK(int request_id);
   void OnCancelRequest(int request_id);
-  void OnTransferRequestToNewPage(int new_routing_id, int request_id);
   void OnFollowRedirect(int request_id,
                         bool has_new_first_party_for_cookies,
                         const GURL& new_first_party_for_cookies);
   void OnReleaseDownloadedFile(int request_id);
 
   // Creates ResourceRequestInfoImpl for a download or page save.
   // |download| should be true if the request is a file download.
   ResourceRequestInfoImpl* CreateRequestInfo(
       scoped_ptr<ResourceHandler> handler,
       int child_id,
@@ skipping 104 matching lines @@
   // http://crbug.com/90971 - Assists in tracking down use-after-frees on
   // shutdown.
   std::set<const ResourceContext*> active_resource_contexts_;
 
   DISALLOW_COPY_AND_ASSIGN(ResourceDispatcherHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RESOURCE_DISPATCHER_HOST_IMPL_H_