Convert //chrome/browser/ui from scoped_ptr to std::unique_ptr

chrome/browser/ui/ash/multi_user/multi_user_context_menu_chromeos.cc

 // Copyright 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 "chrome/browser/ui/ash/multi_user/multi_user_context_menu.h"
 
 #include "ash/multi_profile_uma.h"
 #include "ash/session/session_state_delegate.h"
 #include "ash/shell.h"
 #include "base/bind.h"
@@ skipping 47 matching lines @@
       window_(window) {
 }
 
 void MultiUserContextMenuChromeos::ExecuteCommand(int command_id,
                                                   int event_flags) {
   ExecuteVisitDesktopCommand(command_id, window_);
 }
 }  // namespace
 }  // namespace chromeos
 
-scoped_ptr<ui::MenuModel> CreateMultiUserContextMenu(aura::Window* window) {
-  scoped_ptr<ui::MenuModel> model;
+std::unique_ptr<ui::MenuModel> CreateMultiUserContextMenu(
+    aura::Window* window) {
+  std::unique_ptr<ui::MenuModel> model;
   ash::SessionStateDelegate* delegate =
       ash::Shell::GetInstance()->session_state_delegate();
   if (!delegate)
     return model;
 
   int logged_in_users = delegate->NumberOfLoggedInUsers();
   if (logged_in_users > 1) {
     // If this window is not owned, we don't show the menu addition.
     chrome::MultiUserWindowManager* manager =
         chrome::MultiUserWindowManager::GetInstance();
@@ skipping 62 matching lines @@
           return;
         }
       }
       chromeos::ShowMultiprofilesWarningDialog(on_accept);
       return;
     }
     default:
       NOTREACHED();
   }
 }