Update routing id of pending resource requests for reparented iframes.

content/browser/renderer_host/resource_dispatcher_host.h

 // Copyright (c) 2011 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 84 matching lines @@
                      int process_unique_id,
                      int route_id,
                      const content::ResourceContext& context);
 
   // Cancels the given request if it still exists. We ignore cancels from the
   // renderer in the event of a download.
   void CancelRequest(int process_unique_id,
                      int request_id,
                      bool from_renderer);
 
+  // Assigns the pending request a new routing_id because it was transferred
+  // to a new page.
+  void TransferRequestToNewPage(int process_unique_id,
+                                int new_routing_id,
+                                int request_id);
+
   // Follows a deferred redirect for the given request.
   // new_first_party_for_cookies, if non-empty, is the new cookie policy URL
   // for the redirected URL.  If the cookie policy URL needs changing, pass
   // true as has_new_first_party_for_cookies and the new cookie policy URL as
   // new_first_party_for_cookies.  Otherwise, pass false as
   // has_new_first_party_for_cookies, and new_first_party_for_cookies will not
   // be used.
   void FollowDeferredRedirect(int process_unique_id,
                               int request_id,
                               bool has_new_first_party_for_cookies,
@@ skipping 278 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(const IPC::Message& msg, 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 ResourceDispatcherHostRequestInfo for a browser-initiated request
   // (a download or a page save). |download| should be true if the request
   // is a file download.
   ResourceDispatcherHostRequestInfo* CreateRequestInfoForBrowserRequest(
       ResourceHandler* handler,
@@ skipping 104 matching lines @@
 
   ResourceDispatcherHostDelegate* delegate_;
 
   static bool is_prefetch_enabled_;
   bool allow_cross_origin_auth_prompt_;
 
   DISALLOW_COPY_AND_ASSIGN(ResourceDispatcherHost);
 };
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RESOURCE_DISPATCHER_HOST_H_