Replace scoped_ptr with std::unique_ptr in //ui

ui/message_center/views/message_view_context_menu_controller.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 "ui/message_center/views/message_view_context_menu_controller.h"
 
 #include "ui/base/models/menu_model.h"
 #include "ui/message_center/views/message_center_controller.h"
 #include "ui/message_center/views/message_view.h"
 #include "ui/views/controls/menu/menu_runner.h"
 #include "ui/views/widget/widget.h"
 
 namespace message_center {
 
 MessageViewContextMenuController::MessageViewContextMenuController(
     MessageCenterController* controller)
     : controller_(controller) {
 }
 
 MessageViewContextMenuController::~MessageViewContextMenuController() {
 }
 
 void MessageViewContextMenuController::ShowContextMenuForView(
     views::View* source,
     const gfx::Point& point,
     ui::MenuSourceType source_type) {
   // Assumes that the target view has to be MessageView.
   MessageView* message_view = static_cast<MessageView*>(source);
-  scoped_ptr<ui::MenuModel> menu_model(controller_->CreateMenuModel(
+  std::unique_ptr<ui::MenuModel> menu_model(controller_->CreateMenuModel(
       message_view->notifier_id(), message_view->display_source()));
 
   if (!menu_model || menu_model->GetItemCount() == 0)
     return;
 
   views::MenuRunner menu_runner(menu_model.get(),
                                 views::MenuRunner::HAS_MNEMONICS);
 
   ignore_result(menu_runner.RunMenuAt(source->GetWidget()->GetTopLevelWidget(),
                                       NULL,
                                       gfx::Rect(point, gfx::Size()),
                                       views::MENU_ANCHOR_TOPRIGHT,
                                       source_type));
 }
 
 }  // namespace message_center