Implement sending actions back to the render for media element context menus.

chrome/browser/views/tab_contents/render_view_context_menu_external_win.h

 // Copyright (c) 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_TAB_CONTENTS_RENDER_VIEW_CONTEXT_MENU_EXTERNAL_WIN_H_
 #define CHROME_BROWSER_TAB_CONTENTS_RENDER_VIEW_CONTEXT_MENU_EXTERNAL_WIN_H_
 
 #include <vector>
 
 #include "chrome/browser/views/tab_contents/render_view_context_menu_win.h"
 
 // This class provides a facility for an external host to customize the context
 // menu displayed in Chrome.
 class RenderViewContextMenuExternalWin : public RenderViewContextMenuWin {
  public:
   RenderViewContextMenuExternalWin(TabContents* tab_contents,
                                    const ContextMenuParams& params,
                                    const std::vector<int> disabled_menu_ids);
 
-  ~RenderViewContextMenuExternalWin() {}
+  virtual ~RenderViewContextMenuExternalWin() {}
 
  protected:
   // RenderViewContextMenuWin overrides --------------------------------------
   virtual void AppendMenuItem(int id);
 
   // RenderViewContextMenu override
   virtual void DoInit();
 
  private:
   // Contains the list of context menu ids to be disabled.
   std::vector<int> disabled_menu_ids_;
 };
 
 #endif  // CHROME_BROWSER_TAB_CONTENTS_RENDER_VIEW_CONTEXT_MENU_EXTERNAL_WIN_H_