Convert //ash from scoped_ptr to std::unique_ptr

ash/system/chromeos/power/dual_role_notification.h

 // Copyright 2015 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 ASH_SYSTEM_CHROMEOS_POWER_DUAL_ROLE_NOTIFICATION_H_
 #define ASH_SYSTEM_CHROMEOS_POWER_DUAL_ROLE_NOTIFICATION_H_
 
 #include <stddef.h>
 
+#include <memory>
+
 #include "ash/ash_export.h"
 #include "ash/system/chromeos/power/power_status.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 
 namespace message_center {
 class MessageCenter;
 class Notification;
 }
 
 namespace ash {
 
 // Shows a non-toasting MessageCenter notification based on what dual-role
 // devices are connected.
 class ASH_EXPORT DualRoleNotification {
  public:
   explicit DualRoleNotification(message_center::MessageCenter* message_center);
   ~DualRoleNotification();
 
   // Creates or updates the notification.
   void Update();
 
  private:
   // Creates the notification using the updated status.
-  scoped_ptr<message_center::Notification> CreateNotification();
+  std::unique_ptr<message_center::Notification> CreateNotification();
 
   message_center::MessageCenter* message_center_;
-  scoped_ptr<PowerStatus::PowerSource> dual_role_source_;
-  scoped_ptr<PowerStatus::PowerSource> dual_role_sink_;
+  std::unique_ptr<PowerStatus::PowerSource> dual_role_source_;
+  std::unique_ptr<PowerStatus::PowerSource> dual_role_sink_;
   size_t num_dual_role_sinks_;
   bool line_power_connected_;
 
   DISALLOW_COPY_AND_ASSIGN(DualRoleNotification);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_CHROMEOS_POWER_DUAL_ROLE_NOTIFICATION_H_