Implement ResourceQueue, an object that makes it easy to delay starting

chrome/browser/renderer_host/download_resource_handler.cc

 // Copyright (c) 2006-2008 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/download_resource_handler.h"
 
 #include "base/logging.h"
 #include "chrome/browser/chrome_thread.h"
 #include "chrome/browser/download/download_file.h"
 #include "chrome/browser/download/download_manager.h"
+#include "chrome/browser/renderer_host/global_request_id.h"
 #include "chrome/browser/renderer_host/resource_dispatcher_host.h"
 #include "net/base/io_buffer.h"
 #include "net/url_request/url_request_context.h"
 
 DownloadResourceHandler::DownloadResourceHandler(ResourceDispatcherHost* rdh,
                                                  int render_process_host_id,
                                                  int render_view_id,
                                                  int request_id,
                                                  const GURL& url,
                                                  DownloadFileManager* manager,
                                                  URLRequest* request,
                                                  bool save_as)
     : download_id_(-1),
-      global_id_(ResourceDispatcherHost::GlobalRequestID(render_process_host_id,
-                                                         request_id)),
+      global_id_(render_process_host_id, request_id),
       render_view_id_(render_view_id),
       url_(url),
       content_length_(0),
       download_manager_(manager),
       request_(request),
       save_as_(save_as),
       buffer_(new DownloadBuffer),
       rdh_(rdh),
       is_paused_(false) {
 }
@@ skipping 137 matching lines @@
                        should_pause);
     is_paused_ = should_pause;
   }
 }
 
 void DownloadResourceHandler::StartPauseTimer() {
   if (!pause_timer_.IsRunning())
     pause_timer_.Start(base::TimeDelta::FromMilliseconds(kThrottleTimeMs), this,
                        &DownloadResourceHandler::CheckWriteProgress);
 }