Prepare SystemTray to support notifications

ash/system/ime/tray_ime.h

 // 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.
 
 #ifndef ASH_SYSTEM_IME_TRAY_IME_H_
 #define ASH_SYSTEM_IME_TRAY_IME_H_
 #pragma once
 
 #include "ash/system/ime/ime_observer.h"
 #include "ash/system/tray/system_tray_item.h"
-#include "base/memory/scoped_ptr.h"
 
 namespace views {
 class Label;
 }
 
 namespace ash {
 
 struct IMEInfo;
 
 namespace internal {
@@ skipping 19 matching lines @@
   virtual views::View* CreateDefaultView(user::LoginStatus status) OVERRIDE;
   virtual views::View* CreateDetailedView(user::LoginStatus status) OVERRIDE;
   virtual void DestroyTrayView() OVERRIDE;
   virtual void DestroyDefaultView() OVERRIDE;
   virtual void DestroyDetailedView() OVERRIDE;
   virtual void UpdateAfterLoginStatusChange(user::LoginStatus status) OVERRIDE;
 
   // Overridden from IMEObserver.
   virtual void OnIMERefresh() OVERRIDE;
 
-  scoped_ptr<TrayItemView> tray_label_;
-  scoped_ptr<tray::IMEDefaultView> default_;
-  scoped_ptr<tray::IMEDetailedView> detailed_;
+  TrayItemView* tray_label_;
+  tray::IMEDefaultView* default_;
+  tray::IMEDetailedView* detailed_;
 
   DISALLOW_COPY_AND_ASSIGN(TrayIME);
 };
 
 }  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_IME_TRAY_IME_H_