Refactoring: ProtocolHandler::MaybeCreateJob takes NetworkDelegate as argument

chrome/browser/net/about_protocol_handler.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.
 
 #include "chrome/browser/net/about_protocol_handler.h"
 
 #include "net/url_request/url_request_about_job.h"
 
 namespace net {
 
 AboutProtocolHandler::AboutProtocolHandler() {
 }
 
 URLRequestJob* AboutProtocolHandler::MaybeCreateJob(
-    URLRequest* request) const {
+    URLRequest* request, NetworkDelegate* network_delegate) const {
   DCHECK(false);
-  return new URLRequestAboutJob(request);
+  return new URLRequestAboutJob(request, network_delegate);
 }
 
 }  // namespace net