Substitute ResourceHandlers with dummy ResourceHandler while request is transferred

chrome/browser/renderer_host/transfer_navigation_resource_handler.cc

 // 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.
 
 #include "chrome/browser/renderer_host/transfer_navigation_resource_handler.h"
 
 #include "base/bind.h"
 #include "chrome/browser/profiles/profile_io_data.h"
 #include "chrome/browser/extensions/extension_info_map.h"
 #include "chrome/common/extensions/extension_process_policy.h"
@@ skipping 46 matching lines @@
                                                          uint64 position,
                                                          uint64 size) {
   return next_handler_->OnUploadProgress(request_id, position, size);
 }
 
 bool TransferNavigationResourceHandler::OnRequestRedirected(
     int request_id,
     const GURL& new_url,
     content::ResourceResponse* response,
     bool* defer) {
-
   ResourceDispatcherHostRequestInfo* info =
       ResourceDispatcherHost::InfoForRequest(request_);
 
   // If a toplevel request is redirecting across extension extents, we want to
   // switch processes. We do this by deferring the redirect and resuming the
   // request once the navigation controller properly assigns the right process
   // to host the new URL.
   // TODO(mpcomplete): handle for cases other than extensions (e.g. WebUI).
   const content::ResourceContext& resource_context = *info->context();
   ProfileIOData* io_data =
@@ skipping 55 matching lines @@
 bool TransferNavigationResourceHandler::OnResponseCompleted(
     int request_id,
     const net::URLRequestStatus& status,
     const std::string& security_info) {
   return next_handler_->OnResponseCompleted(request_id, status, security_info);
 }
 
 void TransferNavigationResourceHandler::OnRequestClosed() {
   next_handler_->OnRequestClosed();
 }