Implement upgrade notifications....

chrome/browser/app_menu_model.h

 // 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_APP_MENU_MODEL_H_
 #define CHROME_BROWSER_APP_MENU_MODEL_H_
 
 #include <set>
 #include <vector>
 
 #include "app/menus/simple_menu_model.h"
 #include "base/ref_counted.h"
 #include "base/scoped_ptr.h"
 #include "chrome/browser/user_data_manager.h"
 
 class Browser;
 
 // A menu model that builds the contents of the app menu.
 class AppMenuModel : public menus::SimpleMenuModel {
  public:
   explicit AppMenuModel(menus::SimpleMenuModel::Delegate* delegate,
                         Browser* browser);
   virtual ~AppMenuModel();
 
-  // Override this to handle the sync menu item (whose label is
-  // updated dynamically).
+  // Overridden from menus::SimpleMenuModel:
   virtual bool IsLabelDynamicAt(int index) const;
   virtual string16 GetLabelAt(int index) const;
+  virtual bool HasIcons() const { return true; }
+  virtual bool GetIconAt(int index, SkBitmap* icon) const;
 
   // Build/update profile submenu. Return true if profiles submenu is built or
   // updated. False otherwise.
   bool BuildProfileSubMenu();
 
  private:
   void Build();
 
   bool ProfilesChanged(const std::vector<std::wstring>& profiles) const;
 
   string16 GetSyncMenuLabel() const;
-  bool IsSyncItem(int index) const;
+  string16 GetAboutEntryMenuLabel() const;
+  bool IsDynamicItem(int index) const;
 
   // Contents of the profiles menu to populate with profile names.
   scoped_ptr<menus::SimpleMenuModel> profiles_menu_contents_;
 
   // Profile names that are in profiles_menu_contents_. This is used to
   // detect profile change.
   std::vector<std::wstring> known_profiles_;
 
   Browser* browser_;  // weak
 
   DISALLOW_COPY_AND_ASSIGN(AppMenuModel);
 };
 
 #endif  // CHROME_BROWSER_APP_MENU_MODEL_H_