added CTRL+Click and SHIFT+Click handler for context menu, Back and Forward.

ui/base/models/simple_menu_model.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 UI_BASE_MODELS_SIMPLE_MENU_MODEL_H_
 #define UI_BASE_MODELS_SIMPLE_MENU_MODEL_H_
 #pragma once
 
 #include <vector>
 
@@ skipping 30 matching lines @@
     // Gets the icon for the item with the specified id, returning true if there
     // is an icon, false otherwise.
     virtual bool GetIconForCommandId(int command_id, SkBitmap* icon) const;
 
     // Notifies the delegate that the item with the specified command id was
     // visually highlighted within the menu.
     virtual void CommandIdHighlighted(int command_id);
 
     // Performs the action associated with the specified command id.
     virtual void ExecuteCommand(int command_id) = 0;
+    virtual void ExecuteCommandWithDisposition(int command_id, int disposition);
 
     // Notifies the delegate that the menu has closed.
     virtual void MenuClosed();
 
    protected:
     virtual ~Delegate() {}
   };
 
   // The Delegate can be NULL, though if it is items can't be checked or
   // disabled.
@@ skipping 50 matching lines @@
   virtual bool GetAcceleratorAt(int index,
                                 ui::Accelerator* accelerator) const;
   virtual bool IsItemCheckedAt(int index) const;
   virtual int GetGroupIdAt(int index) const;
   virtual bool GetIconAt(int index, SkBitmap* icon);
   virtual ui::ButtonMenuItemModel* GetButtonMenuItemAt(int index) const;
   virtual bool IsEnabledAt(int index) const;
   virtual bool IsVisibleAt(int index) const;
   virtual void HighlightChangedTo(int index);
   virtual void ActivatedAt(int index);
+  virtual void ActivatedAtWithDisposition(int index, int disposition);
   virtual MenuModel* GetSubmenuModelAt(int index) const;
   virtual void MenuClosed();
   virtual void SetMenuModelDelegate(ui::MenuModelDelegate* menu_model_delegate);
 
  protected:
   // Some variants of this model (SystemMenuModel) relies on items to be
   // inserted backwards. This is counter-intuitive for the API, so rather than
   // forcing customers to insert things backwards, we return the indices
   // backwards instead. That's what this method is for. By default, it just
   // returns what it's passed.
@@ skipping 21 matching lines @@
   MenuModelDelegate* menu_model_delegate_;
 
   ScopedRunnableMethodFactory<SimpleMenuModel> method_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SimpleMenuModel);
 };
 
 }  // namespace ui
 
 #endif  // UI_BASE_MODELS_SIMPLE_MENU_MODEL_H_