Fix transferring processes during a redirect.

content/browser/renderer_host/resource_dispatcher_host_impl.cc

 // 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.
 
 // See http://dev.chromium.org/developers/design-documents/multi-process-resource-loading
 
 #include "content/browser/renderer_host/resource_dispatcher_host_impl.h"
 
 #include <set>
 #include <vector>
@@ skipping 916 matching lines @@
   }
 
   int load_flags =
       BuildLoadFlagsForRequest(request_data, child_id, sync_result != NULL);
 
   // Construct the request.
   scoped_ptr<net::URLRequest> new_request;
   net::URLRequest* request;
   if (deferred_loader.get()) {
     request = deferred_loader->request();
+
+    // Give the ResourceLoader (or any of the ResourceHandlers held by it) a
+    // chance to reset some state before we complete the transfer.
+    deferred_loader->WillCompleteTransfer();
   } else {
     new_request.reset(new net::URLRequest(
         request_data.url,
         NULL,
         filter_->GetURLRequestContext(request_data.resource_type)));
     request = new_request.get();
 
     request->set_method(request_data.method);
     request->set_first_party_for_cookies(request_data.first_party_for_cookies);
     request->set_referrer(referrer.url.spec());
@@ skipping 770 matching lines @@
 
   return i->second.get();
 }
 
 ResourceLoader* ResourceDispatcherHostImpl::GetLoader(int child_id,
                                                       int request_id) const {
   return GetLoader(GlobalRequestID(child_id, request_id));
 }
 
 }  // namespace content