Move initialization of ChromeURLRequestContexts to the IO thread.

chrome/browser/download/download_manager.h

 // Copyright (c) 2006-2009 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.
 //
 // The DownloadManager object manages the process of downloading, including
 // updates to the history system and providing the information for displaying
 // the downloads view in the Destinations tab. There is one DownloadManager per
 // active profile in Chrome.
 //
 // Each download is represented by a DownloadItem, and all DownloadItems
@@ skipping 45 matching lines @@
 #include "chrome/common/pref_member.h"
 
 class DownloadFileManager;
 class DownloadItemView;
 class DownloadManager;
 class GURL;
 class MessageLoop;
 class PrefService;
 class Profile;
 class ResourceDispatcherHost;
-class URLRequestContext;
+class URLRequestContextGetter;
 class TabContents;
 
 namespace base {
 class Thread;
 }
 
 // DownloadItem ----------------------------------------------------------------
 
 // One DownloadItem per download. This is the model class that stores all the
 // state for a download. Multiple views, such as a tab's download shelf and the
@@ skipping 501 matching lines @@
   DownloadMap dangerous_finished_;
 
   // True if the download manager has been initialized and requires a shutdown.
   bool shutdown_needed_;
 
   // Observers that want to be notified of changes to the set of downloads.
   ObserverList<Observer> observers_;
 
   // The current active profile.
   Profile* profile_;
-  scoped_refptr<URLRequestContext> request_context_;
+  scoped_refptr<URLRequestContextGetter> request_context_getter_;
 
   // Used for history service request management.
   CancelableRequestConsumerTSimple<Observer*> cancelable_consumer_;
 
   // Non-owning pointer for handling file writing on the download_thread_.
   DownloadFileManager* file_manager_;
 
   // A pointer to the main UI loop.
   MessageLoop* ui_loop_;
 
@@ skipping 24 matching lines @@
   PendingFinishedMap pending_finished_downloads_;
 
   // The "Save As" dialog box used to ask the user where a file should be
   // saved.
   scoped_refptr<SelectFileDialog> select_file_dialog_;
 
   DISALLOW_COPY_AND_ASSIGN(DownloadManager);
 };
 
 #endif  // CHROME_BROWSER_DOWNLOAD_DOWNLOAD_MANAGER_H_