[Net] Propagate priority changes from URLRequest to HttpTransaction

net/url_request/url_request_http_job.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 "net/url_request/url_request_http_job.h"
 
 #include "base/base_switches.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
@@ skipping 1560 matching lines @@
   DCHECK(transaction_->GetResponseInfo());
   return override_response_headers_.get() ?
       override_response_headers_ :
       transaction_->GetResponseInfo()->headers;
 }
 
 void URLRequestHttpJob::NotifyURLRequestDestroyed() {
   awaiting_callback_ = false;
 }
 
+void URLRequestHttpJob::SetPriority(RequestPriority priority) {
+  request_info_.priority = priority;
+  if (transaction_)
+    transaction_->SetPriority(priority);
+}
+
 void URLRequestHttpJob::OnDetachRequest() {
   http_transaction_delegate_->OnDetachRequest();
 }
 
 }  // namespace net