Convert //ash from scoped_ptr to std::unique_ptr

ash/system/chromeos/tray_display.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/chromeos/tray_display.h"
 
+#include <memory>
 #include <utility>
 #include <vector>
 
 #include "ash/display/display_manager.h"
 #include "ash/display/screen_orientation_controller_chromeos.h"
 #include "ash/display/window_tree_host_manager.h"
 #include "ash/shell.h"
 #include "ash/system/chromeos/devicetype_utils.h"
 #include "ash/system/system_notifier.h"
 #include "ash/system/tray/actionable_view.h"
@@ skipping 373 matching lines @@
 
   // Don't display notifications for accelerometer triggered screen rotations.
   // See http://crbug.com/364949
   if (Shell::GetInstance()
           ->screen_orientation_controller()
           ->ignore_display_configuration_updates()) {
     return;
   }
 
   ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance();
-  scoped_ptr<Notification> notification(new Notification(
+  std::unique_ptr<Notification> notification(new Notification(
       message_center::NOTIFICATION_TYPE_SIMPLE, kNotificationId, message,
       additional_message, bundle.GetImageNamed(IDR_AURA_NOTIFICATION_DISPLAY),
       base::string16(),  // display_source
       GURL(),
       message_center::NotifierId(message_center::NotifierId::SYSTEM_COMPONENT,
                                  system_notifier::kNotifierDisplay),
       message_center::RichNotificationData(),
       new message_center::HandleNotificationClickedDelegate(
           base::Bind(&OpenSettings))));
 
@@ skipping 39 matching lines @@
 bool TrayDisplay::GetAccessibleStateForTesting(ui::AXViewState* state) {
   views::View* view = default_;
   if (view) {
     view->GetAccessibleState(state);
     return true;
   }
   return false;
 }
 
 }  // namespace ash