Move NotificationDelegate into message_center.

ui/message_center/message_center.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 UI_MESSAGE_CENTER_MESSAGE_CENTER_H_
 #define UI_MESSAGE_CENTER_MESSAGE_CENTER_H_
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 73 matching lines @@
   // Basic operations of notification: add/remove/update.
 
   // Adds a new notification. |id| is a unique identifier, used to update or
   // remove notifications. |title| and |meesage| describe the notification text.
   // Use SetNotificationIcon, SetNotificationImage, or SetNotificationButtonIcon
   // to set images. If |extension_id| is provided then 'Disable extension' will
   // appear in a dropdown menu and the id will be used to disable notifications
   // from the extension. Otherwise if |display_source| is provided, a menu item
   // showing the source and allowing notifications from that source to be
   // disabled will be shown. All actual disabling is handled by the Delegate.
-  virtual void AddNotification(
-      NotificationType type,
-      const std::string& id,
-      const string16& title,
-      const string16& message,
-      const string16& display_source,
-      const std::string& extension_id,
-      const base::DictionaryValue* optional_fields) = 0;
+  virtual void AddNotification(NotificationType type,
+                               const std::string& id,
+                               const string16& title,
+                               const string16& message,
+                               const string16& display_source,
+                               const std::string& extension_id,
+                               const base::DictionaryValue* optional_fields,
+                               NotificationDelegate* delegate) = 0;
 
   // Updates an existing notification with id = old_id and set its id to new_id.
   // |optional_fields| can be NULL in case of no updates on those fields.
   virtual void UpdateNotification(
       const std::string& old_id,
       const std::string& new_id,
       const string16& title,
       const string16& message,
       const base::DictionaryValue* optional_fields) = 0;
 
@@ skipping 39 matching lines @@
   MessageCenter();
   virtual ~MessageCenter();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MessageCenter);
 };
 
 }  // namespace message_center
 
 #endif  // UI_MESSAGE_CENTER_MESSAGE_CENTER_H_