Refactor the "spell-checker options" submenu.

chrome/browser/tab_contents/render_view_context_menu_observer.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_TAB_CONTENTS_RENDER_VIEW_CONTEXT_MENU_OBSERVER_H_
 #define CHROME_BROWSER_TAB_CONTENTS_RENDER_VIEW_CONTEXT_MENU_OBSERVER_H_
 #pragma once
 
 struct ContextMenuParams;
 
@@ skipping 75 matching lines @@
   virtual void InitMenu(const ContextMenuParams& params);
 
   // Called when the RenderViewContextMenu class asks whether an observer
   // listens for the specified command ID. If this function returns true, the
   // RenderViewContextMenu class calls IsCommandIdEnabled() or ExecuteCommand().
   virtual bool IsCommandIdSupported(int command_id);
 
   // Called when the RenderViewContextMenu class sets the initial status of the
   // specified context-menu item. If we need to enable or disable a context-menu
   // item while showing, use RenderViewContextMenuDelegate::UpdateMenuItem().
+  virtual bool IsCommandIdChecked(int command_id);
   virtual bool IsCommandIdEnabled(int command_id);
 
   // Called when a user selects the specified context-menu item.
   virtual void ExecuteCommand(int command_id);
 };
 
 #endif  // CHROME_BROWSER_TAB_CONTENTS_RENDER_VIEW_CONTEXT_MENU_OBSERVER_H_