Enable keyboard accelerators while a menu is open

ui/views/controls/menu/menu_controller.h

 // Copyright (c) 2012 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 UI_VIEWS_CONTROLS_MENU_MENU_CONTROLLER_H_
 #define UI_VIEWS_CONTROLS_MENU_MENU_CONTROLLER_H_
 
 #include "build/build_config.h"
 
 #include <list>
@@ skipping 166 matching lines @@
   bool IsCancelAllTimerRunningForTest();
 
   // Only used for testing.
   static void TurnOffMenuSelectionHoldForTest();
 
  private:
   friend class internal::MenuEventDispatcher;
   friend class internal::MenuMessagePumpDispatcher;
   friend class internal::MenuRunnerImpl;
   friend class MenuControllerTest;
+  friend class MenuEventFilter;
   friend class MenuHostRootView;
   friend class MenuItemView;
   friend class SubmenuView;
 
   class MenuScrollTask;
 
   struct SelectByCharDetails;
 
   // Values supplied to SetSelection.
   enum SetSelectionTypes {
@@ skipping 443 matching lines @@
   bool item_selected_by_touch_;
 
   scoped_ptr<MenuMessageLoop> message_loop_;
 
   DISALLOW_COPY_AND_ASSIGN(MenuController);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_MENU_MENU_CONTROLLER_H_