The 1st patch to disambiguate message center notifications

ui/message_center/message_center_impl.h

 // Copyright (c) 2013 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 UI_MESSAGE_CENTER_MESSAGE_CENTER_IMPL_H_
 #define UI_MESSAGE_CENTER_MESSAGE_CENTER_IMPL_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 136 matching lines @@
   // MessageCenter overrides:
   virtual void AddObserver(MessageCenterObserver* observer) OVERRIDE;
   virtual void RemoveObserver(MessageCenterObserver* observer) OVERRIDE;
   virtual void AddNotificationBlocker(NotificationBlocker* blocker) OVERRIDE;
   virtual void RemoveNotificationBlocker(NotificationBlocker* blocker) OVERRIDE;
   virtual void SetVisibility(Visibility visible) OVERRIDE;
   virtual bool IsMessageCenterVisible() const OVERRIDE;
   virtual size_t NotificationCount() const OVERRIDE;
   virtual size_t UnreadNotificationCount() const OVERRIDE;
   virtual bool HasPopupNotifications() const OVERRIDE;
-  virtual bool HasNotification(const std::string& id) OVERRIDE;
   virtual bool IsQuietMode() const OVERRIDE;
   virtual bool HasClickedListener(const std::string& id) OVERRIDE;
+  virtual message_center::Notification* FindVisibleNotificationById(
+      const std::string& id) OVERRIDE;
   virtual const NotificationList::Notifications& GetVisibleNotifications()
       OVERRIDE;
   virtual NotificationList::PopupNotifications GetPopupNotifications() OVERRIDE;
   virtual void AddNotification(scoped_ptr<Notification> notification) OVERRIDE;
   virtual void UpdateNotification(const std::string& old_id,
                                   scoped_ptr<Notification> new_notification)
       OVERRIDE;
   virtual void RemoveNotification(const std::string& id, bool by_user) OVERRIDE;
   virtual void RemoveAllNotifications(bool by_user) OVERRIDE;
   virtual void RemoveAllVisibleNotifications(bool by_user) OVERRIDE;
@@ skipping 61 matching lines @@
   // Queue for the notifications to delay the addition/updates when the message
   // center is visible.
   scoped_ptr<internal::ChangeQueue> notification_queue_;
 
   DISALLOW_COPY_AND_ASSIGN(MessageCenterImpl);
 };
 
 }  // namespace message_center
 
 #endif  // UI_MESSAGE_CENTER_MESSAGE_CENTER_H_