Implement sideload wipeout for Extensions.

chrome/browser/ui/views/toolbar_view.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 CHROME_BROWSER_UI_VIEWS_TOOLBAR_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_TOOLBAR_VIEW_H_
 
 #include <set>
 #include <string>
 
@@ skipping 220 matching lines @@
   BrowserActionsContainer* browser_actions_;
   views::MenuButton* app_menu_;
   Browser* browser_;
 
   // Contents of the profiles menu to populate with profile names.
   scoped_ptr<ui::SimpleMenuModel> profiles_menu_contents_;
 
   // Controls whether or not a home button should be shown on the toolbar.
   BooleanPrefMember show_home_button_;
 
+  // A pref that counts how often the bubble has been shown.
+  IntegerPrefMember sideload_wipeout_bubble_shown_;
+
   // The display mode used when laying out the toolbar.
   DisplayMode display_mode_;
 
   // Wrench menu.
   scoped_ptr<WrenchMenu> wrench_menu_;
   scoped_ptr<WrenchMenuModel> wrench_menu_model_;
 
   // A list of listeners to call when the menu opens.
   ObserverList<views::MenuListener> menu_listeners_;
 
   content::NotificationRegistrar registrar_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(ToolbarView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_TOOLBAR_VIEW_H_