Changes the tab menu to use pin and unpin instead of a check. The mac

chrome/browser/tab_menu_model.h

-// Copyright (c) 2009 The Chromium Authors. All rights reserved. Use of this
+// Copyright (c) 2010 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_MENU_MODEL_H_
 #define CHROME_BROWSER_TAB_MENU_MODEL_H_
 
 #include "app/menus/simple_menu_model.h"
 
 class Browser;
 
 // A menu model that builds the contents of the tab context menu. This menu has
-// only one level (no submenus).
+// only one level (no submenus). TabMenuModel caches local state from the
+// tab (such as the pinned state). To make sure the menu reflects the real state
+// of the tab a new TabMenuModel should be created each time the menu is shown.
 class TabMenuModel : public menus::SimpleMenuModel {
  public:
-  explicit TabMenuModel(menus::SimpleMenuModel::Delegate* delegate);
+  TabMenuModel(menus::SimpleMenuModel::Delegate* delegate, bool is_pinned);
   virtual ~TabMenuModel() {}
 
  private:
-  void Build();
+  void Build(bool is_pinned);
 
   DISALLOW_COPY_AND_ASSIGN(TabMenuModel);
 };
 
 #endif  // CHROME_BROWSER_TAB_MENU_MODEL_H_