FINALizing of the Node hierarchy.

Source/core/html/shadow/SpinButtonElement.h

 /*
  * Copyright (C) 2006, 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 15 matching lines @@
  
 #ifndef SpinButtonElement_h
 #define SpinButtonElement_h
 
 #include "HTMLDivElement.h"
 #include "core/page/PopupOpeningObserver.h"
 #include "core/platform/Timer.h"
 
 namespace WebCore {
 
-class SpinButtonElement : public HTMLDivElement, public PopupOpeningObserver {
+class SpinButtonElement FINAL : public HTMLDivElement, public PopupOpeningObserver {
 public:
     enum UpDownState {
         Indeterminate, // Hovered, but the event is not handled.
         Down,
         Up,
     };
 
     class SpinButtonOwner {
     public:
         virtual ~SpinButtonOwner() { }
@@ skipping 41 matching lines @@
     SpinButtonOwner* m_spinButtonOwner;
     bool m_capturing;
     UpDownState m_upDownState;
     UpDownState m_pressStartingState;
     Timer<SpinButtonElement> m_repeatingTimer;
 };
 
 } // namespace
 
 #endif