Update routing id of pending resource requests for reparented iframes.

webkit/glue/resource_loader_bridge.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.
 //
 // The intent of this file is to provide a type-neutral abstraction between
 // Chrome and WebKit for resource loading. This pure-virtual interface is
 // implemented by the embedder, which also provides a factory method Create
 // to instantiate this object.
 //
 // One of these objects will be created by WebKit for each request. WebKit
@@ skipping 371 matching lines @@
 
   // Call this method to load the resource synchronously (i.e., in one shot).
   // This is an alternative to the Start method.  Be warned that this method
   // will block the calling thread until the resource is fully downloaded or an
   // error occurs.  It could block the calling thread for a long time, so only
   // use this if you really need it!  There is also no way for the caller to
   // interrupt this method.  Errors are reported via the status field of the
   // response parameter.
   virtual void SyncLoad(SyncLoadResponse* response) = 0;
 
+  // When loader is transferred from one page to another, the IPC routing id
+  // can change (they are associated with pages).
+  virtual void UpdateRoutingId(int new_routing_id) = 0;
+
  protected:
   // construction must go through Create()
   ResourceLoaderBridge();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ResourceLoaderBridge);
 };
 
 }  // namespace webkit_glue
 
 #endif  // WEBKIT_GLUE_RESOURCE_LOADER_BRIDGE_H_