backup for dynamic recent tabs submenu

ui/views/controls/menu/menu_model_adapter.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_MODEL_ADAPTER_H_
 #define UI_VIEWS_CONTROLS_MENU_MENU_MODEL_ADAPTER_H_
 
 #include <map>
 
 #include "ui/views/controls/menu/menu_delegate.h"
@@ skipping 20 matching lines @@
 
   // Convenience for creating and populating a menu. The caller owns the
   // returned MenuItemView.
   MenuItemView* CreateMenu();
 
   void set_triggerable_event_flags(int triggerable_event_flags) {
     triggerable_event_flags_ = triggerable_event_flags;
   }
   int triggerable_event_flags() const { return triggerable_event_flags_; }
 
+  // Creates a menu item for the specified entry in the model and adds it as
+  // a child to |menu| at the specified |menu_index|.
+  static MenuItemView* AddMenuItemFromModelAt(ui::MenuModel* model,
+                                              int model_index,
+                                              MenuItemView* menu,
+                                              int menu_index,
+                                              int item_id);
+
+  // Creates a menu item for the specified entry in the model and appends it as
+  // a child to |menu|.
+  static MenuItemView* AppendMenuItemFromModel(ui::MenuModel* model,
+                                               int model_index,
+                                               MenuItemView* menu,
+                                               int item_id);
+
  protected:
   // Create and add a menu item to |menu| for the item at index |index| in
   // |model|. Subclasses override this to allow custom items to be added to the
   // menu.
   virtual MenuItemView* AppendMenuItem(MenuItemView* menu,
                                        ui::MenuModel* model,
                                        int index);
 
   // views::MenuDelegate implementation.
   virtual void ExecuteCommand(int id) OVERRIDE;
@@ skipping 24 matching lines @@
 
   // Map MenuItems to MenuModels.  Used to implement WillShowMenu().
   std::map<MenuItemView*, ui::MenuModel*> menu_map_;
 
   DISALLOW_COPY_AND_ASSIGN(MenuModelAdapter);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_MENU_MENU_MODEL_ADAPTER_H_