Support dragging a virtual file out of the browser.

chrome/browser/dom_ui/downloads_dom_handler.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.
 
 #ifndef CHROME_BROWSER_DOM_UI_DOWNLOADS_DOM_HANDLER_H_
 #define CHROME_BROWSER_DOM_UI_DOWNLOADS_DOM_HANDLER_H_
 
 #include <vector>
 
 #include "chrome/browser/dom_ui/dom_ui.h"
@@ skipping 11 matching lines @@
   explicit DownloadsDOMHandler(DownloadManager* dlm);
   virtual ~DownloadsDOMHandler();
 
   void Init();
 
   // DOMMessageHandler implementation.
   virtual void RegisterMessages();
 
   // DownloadItem::Observer interface
   virtual void OnDownloadUpdated(DownloadItem* download);
+  virtual void OnDownloadFileCompleted(DownloadItem* download) { }
   virtual void OnDownloadOpened(DownloadItem* download) { }
 
   // DownloadManager::Observer interface
   virtual void ModelChanged();
   virtual void SetDownloads(std::vector<DownloadItem*>& downloads);
 
   // Callback for the "getDownloads" message.
   void HandleGetDownloads(const Value* value);
 
   // Callback for the "openFile" message - opens the file in the shell.
@@ skipping 55 matching lines @@
   // The current set of visible DownloadItems for this view received from the
   // DownloadManager. DownloadManager owns the DownloadItems. The vector is
   // kept in order, sorted by ascending start time.
   typedef std::vector<DownloadItem*> OrderedDownloads;
   OrderedDownloads download_items_;
 
   DISALLOW_COPY_AND_ASSIGN(DownloadsDOMHandler);
 };
 
 #endif  // CHROME_BROWSER_DOM_UI_DOWNLOADS_DOM_HANDLER_H_