Re-write many calls to WrapUnique() with MakeUnique()

ui/message_center/message_center_tray.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/message_center_tray.h"
 
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/observer_list.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 184 matching lines @@
 std::unique_ptr<ui::MenuModel> MessageCenterTray::CreateNotificationMenuModel(
     const NotifierId& notifier_id,
     const base::string16& display_source) {
 #if !defined(OS_CHROMEOS)
   // Only web pages are configurable on non-chromeos platforms.
   if (notifier_id.type != NotifierId::WEB_PAGE) {
     return nullptr;
   }
 #endif
 
-  return base::WrapUnique(
-      new NotificationMenuModel(this, notifier_id, display_source));
+  return base::MakeUnique<NotificationMenuModel>(this, notifier_id,
+                                                 display_source);
 }
 
 void MessageCenterTray::OnNotificationAdded(
     const std::string& notification_id) {
   OnMessageCenterChanged();
 }
 
 void MessageCenterTray::OnNotificationRemoved(
     const std::string& notification_id,
     bool by_user) {
@@ skipping 42 matching lines @@
     ShowPopupBubble();
 
   NotifyMessageCenterTrayChanged();
 }
 
 void MessageCenterTray::NotifyMessageCenterTrayChanged() {
   delegate_->OnMessageCenterTrayChanged();
 }
 
 }  // namespace message_center