Update routing id of pending resource requests for reparented iframes.

content/browser/renderer_host/resource_dispatcher_host.h

Index: content/browser/renderer_host/resource_dispatcher_host.h
diff --git a/content/browser/renderer_host/resource_dispatcher_host.h b/content/browser/renderer_host/resource_dispatcher_host.h
index 27a52ac6dee8a1d48ce9496fc278cc0eea4eea25..9e814936273198ebf696f6aab049257cd76e5727 100644
--- a/content/browser/renderer_host/resource_dispatcher_host.h
+++ b/content/browser/renderer_host/resource_dispatcher_host.h
@@ -102,6 +102,12 @@ class ResourceDispatcherHost : public net::URLRequest::Delegate {
                      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
@@ -400,6 +406,7 @@ class ResourceDispatcherHost : public net::URLRequest::Delegate {
   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);