Adds the new URLRequest::OnBeforeNetworkStart hook to the

content/browser/download/download_resource_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 "content/browser/download/download_resource_handler.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/logging.h"
@@ skipping 204 matching lines @@
       base::Bind(&CallStartedCBOnUIThread, started_cb_, item, error));
   started_cb_.Reset();
 }
 
 bool DownloadResourceHandler::OnWillStart(int request_id,
                                           const GURL& url,
                                           bool* defer) {
   return true;
 }
 
+bool DownloadResourceHandler::OnBeforeNetworkStart(int request_id,
+                                                   const GURL& url,
+                                                   bool* defer) {
+  return true;
+}
+
 // Create a new buffer, which will be handed to the download thread for file
 // writing and deletion.
 bool DownloadResourceHandler::OnWillRead(int request_id,
                                          scoped_refptr<net::IOBuffer>* buf,
                                          int* buf_size,
                                          int min_size) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   DCHECK(buf && buf_size);
   DCHECK(!read_buffer_.get());
 
@@ skipping 232 matching lines @@
 
   // Remove output stream callback if a stream exists.
   if (stream_writer_)
     stream_writer_->RegisterCallback(base::Closure());
 
   UMA_HISTOGRAM_TIMES("SB2.DownloadDuration",
                       base::TimeTicks::Now() - download_start_time_);
 }
 
 }  // namespace content