First patch in making destructors of refcounted objects private.

views/widget/aero_tooltip_manager.h

 // Copyright (c) 2006-2008 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 VIEWS_WIDGET_AERO_TOOLTIP_MANAGER_H_
 #define VIEWS_WIDGET_AERO_TOOLTIP_MANAGER_H_
 
 #include "base/ref_counted.h"
 #include "base/task.h"
 #include "views/widget/tooltip_manager_win.h"
@@ skipping 27 matching lines @@
   void Init();
   void OnTimer();
 
   class InitialTimer : public base::RefCounted<InitialTimer> {
    public:
     InitialTimer(AeroTooltipManager* manager, int time);
     void Disown();
     void Execute();
 
    private:
+    friend class base::RefCounted<InitialTimer>;
+
+    ~InitialTimer() {}
+
     AeroTooltipManager* manager_;
   };
 
   int initial_delay_;
   scoped_refptr<InitialTimer> initial_timer_;
 };
 
 }  // namespace views
 
 #endif  // #ifndef VIEWS_WIDGET_AERO_TOOLTIP_MANAGER_H_