Split DownloadItem into an ABC, an Impl, and a Mock.

chrome/browser/ui/webui/downloads_dom_handler.h

 // Copyright (c) 2011 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.
 
 #ifndef CHROME_BROWSER_UI_WEBUI_DOWNLOADS_DOM_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_DOWNLOADS_DOM_HANDLER_H_
 #pragma once
 
 #include <vector>
 
 #include "base/memory/scoped_callback_factory.h"
+#include "base/memory/scoped_ptr.h"
 #include "content/browser/download/download_item.h"
 #include "content/browser/download/download_manager.h"
 #include "content/browser/webui/web_ui.h"
 
 namespace base {
 class ListValue;
 }
 
 // The handler for Javascript messages related to the "downloads" view,
 // also observes changes to the download manager.
@@ skipping 87 matching lines @@
   // notification should follow close on the heels of such a change.
   typedef std::vector<DownloadItem*> OrderedDownloads;
   OrderedDownloads download_items_;
 
   base::ScopedCallbackFactory<DownloadsDOMHandler> callback_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DownloadsDOMHandler);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_DOWNLOADS_DOM_HANDLER_H_