Move NotificationDelegate into message_center.

ash/system/web_notification/web_notification_tray_unittest.cc

 // 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.
 
 #include "ash/system/web_notification/web_notification_tray.h"
 
 #include <vector>
 
 #include "ash/root_window_controller.h"
 #include "ash/shelf/shelf_widget.h"
@@ skipping 45 matching lines @@
 
  protected:
   void AddNotification(const std::string& id) {
     GetMessageCenter()->AddNotification(
         message_center::NOTIFICATION_TYPE_SIMPLE,
         id,
         ASCIIToUTF16("Test Web Notification"),
         ASCIIToUTF16("Notification message body."),
         ASCIIToUTF16("www.test.org"),
         "" /* extension id */,
-        NULL /* optional_fields */);
+        NULL /* optional_fields */,
+        NULL /* delegate */);
   }
 
   void UpdateNotification(const std::string& old_id,
                           const std::string& new_id) {
     GetMessageCenter()->UpdateNotification(
-        old_id, new_id,
+        old_id,
+        new_id,
         ASCIIToUTF16("Updated Web Notification"),
         ASCIIToUTF16("Updated message body."),
+        NULL,
         NULL);
   }
 
   void RemoveNotification(const std::string& id) {
     GetMessageCenter()->RemoveNotification(id, false);
   }
 
   views::Widget* GetWidget() {
     return GetTray()->GetWidget();
   }
@@ skipping 98 matching lines @@
     NotificationList::PopupNotifications popups =
         GetMessageCenter()->GetPopupNotifications();
     EXPECT_EQ(message_center::kMaxVisiblePopupNotifications, popups.size());
   } else {
     EXPECT_EQ(message_center::kMaxVisiblePopupNotifications,
               GetTray()->GetPopupBubbleForTest()->NumMessageViewsForTest());
   }
 }
 
 }  // namespace ash