Mac: Use cross-platform menu model for profile button.

chrome/browser/ui/profile_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 CHROME_BROWSER_UI_PROFILE_MENU_MODEL_H_
 #define CHROME_BROWSER_UI_PROFILE_MENU_MODEL_H_
 #pragma once
 
 #include "ui/base/models/simple_menu_model.h"
 
 // ProfileMenuModel
 //
 // Menu for the multi-profile button displayed on the browser frame when the
 // user is in a multi-profile-enabled account. Stub for now. TODO(mirandac):
 // enable and fill in as part of multi-profile work.
-class ProfileMenuModel : public ui::SimpleMenuModel {
+class ProfileMenuModel : public ui::SimpleMenuModel,
+                         public ui::SimpleMenuModel::Delegate {
  public:
+  explicit ProfileMenuModel();

[sky, 2011/05/23 14:44:38]

nit: no explicit

+  virtual ~ProfileMenuModel();
+
+  // ui::SimpleMenuModel::Delegate implementation
+  virtual bool IsCommandIdChecked(int command_id) const OVERRIDE;
+  virtual bool IsCommandIdEnabled(int command_id) const OVERRIDE;
+  virtual bool GetAcceleratorForCommandId(
+      int command_id, ui::Accelerator* accelerator) OVERRIDE;
+  virtual void ExecuteCommand(int command_id) OVERRIDE;
+
+ private:
   enum {
     COMMAND_CREATE_NEW_PROFILE,
   };
 
-  explicit ProfileMenuModel(ui::SimpleMenuModel::Delegate* delegate);
-  virtual ~ProfileMenuModel();
-
- private:
   DISALLOW_COPY_AND_ASSIGN(ProfileMenuModel);
 };
 
 #endif  // CHROME_BROWSER_UI_PROFILE_MENU_MODEL_H_