Move NotificationDelegate into message_center.

chrome/browser/notifications/notification_delegate.h

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// 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 CHROME_BROWSER_NOTIFICATIONS_NOTIFICATION_DELEGATE_H_
 #define CHROME_BROWSER_NOTIFICATIONS_NOTIFICATION_DELEGATE_H_
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
+#include "ui/message_center/notification_delegate.h"
 
 namespace content {
 class RenderViewHost;
 }
 
 // Delegate for a notification. This class has two roles: to implement callback
 // methods for notification, and to provide an identity of the associated
 // notification.
-class NotificationDelegate
-    : public base::RefCountedThreadSafe<NotificationDelegate> {
+class NotificationDelegate : public message_center::NotificationDelegate {
  public:
-  // To be called when the desktop notification is actually shown.
-  virtual void Display() = 0;
-
-  // To be called when the desktop notification cannot be shown due to an
-  // error.
-  virtual void Error() = 0;
-
-  // To be called when the desktop notification is closed.  If closed by a
-  // user explicitly (as opposed to timeout/script), |by_user| should be true.
-  virtual void Close(bool by_user) = 0;
-
-  // To be called when a desktop notification is clicked.
-  virtual void Click() = 0;
-
-  // Returns true if the delegate can handle click event.
-  virtual bool HasClickedListener();
-
-  // To be called when the user clicks a button in a notification. TODO(miket):
-  // consider providing default implementations of the pure virtuals of this
-  // interface, to avoid pinging so many OWNERs each time we enhance it.
-  virtual void ButtonClick(int button_index);
-
   // Returns unique id of the notification.
   virtual std::string id() const = 0;
 
   // Returns the id of renderer process which creates the notification, or -1.
   virtual int process_id() const;
 
   // Returns the RenderViewHost that generated the notification, or NULL.
   virtual content::RenderViewHost* GetRenderViewHost() const = 0;
 
   // Lets the delegate know that no more rendering will be necessary.
   virtual void ReleaseRenderViewHost();
 
  protected:
   virtual ~NotificationDelegate() {}
-
- private:
-  friend class base::RefCountedThreadSafe<NotificationDelegate>;
 };
 
 #endif  // CHROME_BROWSER_NOTIFICATIONS_NOTIFICATION_DELEGATE_H_