Consolidate ExtensionAction execution code

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_
 
 #include <string>
 
 #include "chrome/browser/extensions/api/extension_action/extension_action_api.h"
 #include "chrome/browser/extensions/location_bar_controller.h"
 
 class Profile;
 
 namespace extensions {
 class ExtensionRegistry;
 
 // A LocationBarControllerProvider which populates the location bar with icons
 // based on the page_action extension API.
 // TODO(rdevlin.cronin): This isn't really a controller.
 class PageActionController : public LocationBarController::ActionProvider,
                              public ExtensionActionAPI::Observer {
  public:
   explicit PageActionController(content::WebContents* web_contents);
   virtual ~PageActionController();
 
   // LocationBarController::Provider implementation.
   virtual ExtensionAction* GetActionForExtension(const Extension* extension)
       OVERRIDE;
-  virtual ExtensionAction::ShowAction OnClicked(
-      const Extension* extension) OVERRIDE;
   virtual void OnNavigated() OVERRIDE;
 
  private:
   // ExtensionActionAPI::Observer implementation.
   virtual void OnExtensionActionUpdated(
       ExtensionAction* extension_action,
       content::WebContents* web_contents,
       content::BrowserContext* browser_context) OVERRIDE;
 
   // Returns the associated Profile.
   Profile* GetProfile();
 
   // The associated WebContents.
   content::WebContents* web_contents_;
 
   ScopedObserver<ExtensionActionAPI, ExtensionActionAPI::Observer>
       extension_action_observer_;
 
   DISALLOW_COPY_AND_ASSIGN(PageActionController);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_PAGE_ACTION_CONTROLLER_H_