Update more core classes to use OVERRIDE / FINAL when needed

Source/core/html/HTMLMarqueeElement.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2007, 2010 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 22 matching lines @@
 
 class HTMLMarqueeElement FINAL : public HTMLElement, private ActiveDOMObject {
 public:
     static PassRefPtr<HTMLMarqueeElement> create(Document&);
 
     int minimumDelay() const;
 
     // DOM Functions
 
     void start();
-    void stop();
+    virtual void stop() OVERRIDE;
 
     int scrollAmount() const;
     void setScrollAmount(int, ExceptionState&);
 
     int scrollDelay() const;
     void setScrollDelay(int, ExceptionState&);
 
     int loop() const;
     void setLoop(int, ExceptionState&);
 
@@ skipping 12 matching lines @@
     virtual RenderObject* createRenderer(RenderStyle*) OVERRIDE;
 
     RenderMarquee* renderMarquee() const;
 };
 
 DEFINE_NODE_TYPE_CASTS(HTMLMarqueeElement, hasTagName(HTMLNames::marqueeTag));
 
 } // namespace WebCore
 
 #endif // HTMLMarqueeElement_h