Replace scoped_ptr with std::unique_ptr in //ui

ui/message_center/notification.cc

 // 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.
 
 #include "ui/message_center/notification.h"
 
 #include "base/logging.h"
 #include "ui/message_center/notification_delegate.h"
 #include "ui/message_center/notification_types.h"
 
@@ skipping 151 matching lines @@
   optional_fields_.priority = SYSTEM_PRIORITY;
   optional_fields_.never_timeout = true;
 }
 
 bool Notification::UseOriginAsContextMessage() const {
   return optional_fields_.context_message.empty() && origin_url_.is_valid() &&
          origin_url_.SchemeIsHTTPOrHTTPS();
 }
 
 // static
-scoped_ptr<Notification> Notification::CreateSystemNotification(
+std::unique_ptr<Notification> Notification::CreateSystemNotification(
     const std::string& notification_id,
     const base::string16& title,
     const base::string16& message,
     const gfx::Image& icon,
     const std::string& system_component_id,
     const base::Closure& click_callback) {
-  scoped_ptr<Notification> notification(new Notification(
+  std::unique_ptr<Notification> notification(new Notification(
       NOTIFICATION_TYPE_SIMPLE, notification_id, title, message, icon,
       base::string16() /* display_source */, GURL(),
       NotifierId(NotifierId::SYSTEM_COMPONENT, system_component_id),
       RichNotificationData(),
       new HandleNotificationClickedDelegate(click_callback)));
   notification->SetSystemPriority();
   return notification;
 }
 
 }  // namespace message_center