RefCounted types should not have public destructors, chromeos edition

chrome/browser/chromeos/notifications/system_notification.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 CHROME_BROWSER_CHROMEOS_NOTIFICATIONS_SYSTEM_NOTIFICATION_H_
 #define CHROME_BROWSER_CHROMEOS_NOTIFICATIONS_SYSTEM_NOTIFICATION_H_
 #pragma once
 
 #include <string>
 
@@ skipping 61 matching lines @@
   class Delegate : public NotificationDelegate {
    public:
     explicit Delegate(const std::string& id);
     virtual void Display() OVERRIDE {}
     virtual void Error() OVERRIDE {}
     virtual void Close(bool by_user) OVERRIDE {}
     virtual void Click() OVERRIDE {}
     virtual std::string id() const OVERRIDE;
     virtual content::RenderViewHost* GetRenderViewHost() const OVERRIDE;
 
+   protected:
+    virtual ~Delegate();
+
    private:
     std::string id_;
 
     DISALLOW_COPY_AND_ASSIGN(Delegate);
   };
 
   void Init(int icon_resource_id);
   void ShowNotification(const Notification& notify);
 
   Profile* profile_;
   BalloonCollectionImplAsh* collection_;
   scoped_refptr<NotificationDelegate> delegate_;
   string16 message_;
   string16 link_;
   BalloonViewHost::MessageCallback callback_;
   GURL icon_;
   string16 title_;
   bool visible_;
   bool sticky_;
   bool urgent_;
   bool show_on_unlock_;
 
   DISALLOW_COPY_AND_ASSIGN(SystemNotification);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_NOTIFICATIONS_SYSTEM_NOTIFICATION_H_