Re-factor Ash Message Center code part 4/4

chrome/browser/ui/views/ash/balloon_collection_impl_ash.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_ASH_BALLOON_COLLECTION_IMPL_ASH_H_
 #define CHROME_BROWSER_UI_VIEWS_ASH_BALLOON_COLLECTION_IMPL_ASH_H_
 
 #include <set>
 
-#include "ash/system/web_notification/web_notification_tray.h"
+#include "ash/system/web_notification/message_center.h"
 #include "chrome/browser/chromeos/notifications/balloon_view_host_chromeos.h"  // MessageCallback
 #include "chrome/browser/notifications/balloon_collection_impl.h"
 
 // Wrapper on top of ::BalloonCollectionImpl to provide integration between
 // the Chrome notification UI and Ash notifications (ash::WebNotificationTray).
-class BalloonCollectionImplAsh : public BalloonCollectionImpl,
-                                 public ash::WebNotificationTray::Delegate {
+class BalloonCollectionImplAsh
+    : public BalloonCollectionImpl,
+      public message_center::MessageCenter::Delegate {
  public:
   BalloonCollectionImplAsh();
   virtual ~BalloonCollectionImplAsh();
 
   // Overridden from BalloonCollectionImpl.
   virtual void Add(const Notification& notification,
                    Profile* profile) OVERRIDE;
   virtual bool HasSpace() const OVERRIDE;
 
-  // Overridden from WebNotificationTray::Delegate.
+  // Overridden from MessageCenter::Delegate.
   virtual void NotificationRemoved(const std::string& notifcation_id) OVERRIDE;
   virtual void DisableExtension(const std::string& notifcation_id) OVERRIDE;
   virtual void DisableNotificationsFromSource(
       const std::string& notifcation_id) OVERRIDE;
   virtual void ShowSettings(const std::string& notifcation_id) OVERRIDE;
   virtual void OnClicked(const std::string& notifcation_id) OVERRIDE;
 
   // Adds a callback for WebUI message. Returns true if the callback
   // is succssfully registered, or false otherwise. It fails to add if
   // there is no notification that matches NotificationDelegate::id(),
@@ skipping 20 matching lines @@
   virtual Balloon* MakeBalloon(const Notification& notification,
                                Profile* profile) OVERRIDE;
 
   const extensions::Extension* GetBalloonExtension(Balloon* balloon);
 
  private:
   DISALLOW_COPY_AND_ASSIGN(BalloonCollectionImplAsh);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_ASH_BALLOON_COLLECTION_IMPL_ASH_H_