Animate the script badges.

chrome/browser/extensions/page_action_controller.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_EXTENSIONS_PAGE_ACTION_CONTROLLER_H_
 #define CHROME_BROWSER_EXTENSIONS_PAGE_ACTION_CONTROLLER_H_
 #pragma once
 
 #include <set>
 #include <string>
 
 #include "base/observer_list.h"
 #include "chrome/browser/extensions/location_bar_controller.h"
 
 class ExtensionService;
 class TabContents;
 
 namespace extensions {
 
 // A LocationBarController which populates the location bar with icons based
 // on the page_action extension API.
 class PageActionController : public LocationBarController {
  public:
   explicit PageActionController(TabContents* tab_contents);
   virtual ~PageActionController();
 
   // LocationBarController implementation.
-  virtual std::vector<ExtensionAction*> GetCurrentActions() OVERRIDE;
+  virtual std::vector<ExtensionAction*> GetCurrentActions() const OVERRIDE;
   virtual Action OnClicked(const std::string& extension_id,
                            int mouse_button) OVERRIDE;
 
  private:
   // Gets the ExtensionService for |tab_contents_|.
-  ExtensionService* GetExtensionService();
+  ExtensionService* GetExtensionService() const;
 
   TabContents* tab_contents_;
 
   DISALLOW_COPY_AND_ASSIGN(PageActionController);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_PAGE_ACTION_CONTROLLER_H_