Update DOM classes to use OVERRIDE / FINAL when needed

Source/core/dom/TagNodeList.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  *
  * 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
@@ skipping 32 matching lines @@
     {
         ASSERT_UNUSED(type, type == TagNodeListType);
         return adoptRef(new TagNodeList(rootNode, TagNodeListType, starAtom, localName));
     }
 
     virtual ~TagNodeList();
 
 protected:
     TagNodeList(PassRefPtr<Node> rootNode, CollectionType, const AtomicString& namespaceURI, const AtomicString& localName);
 
-    virtual bool nodeMatches(Element*) const;
+    virtual bool nodeMatches(Element*) const OVERRIDE;
 
     AtomicString m_namespaceURI;
     AtomicString m_localName;
 };
 
 class HTMLTagNodeList FINAL : public TagNodeList {
 public:
     static PassRefPtr<HTMLTagNodeList> create(PassRefPtr<Node> rootNode, CollectionType type, const AtomicString& localName)
     {
         ASSERT_UNUSED(type, type == HTMLTagNodeListType);
@@ skipping 18 matching lines @@
         if (localName != testNode->localName())
             return false;
     }
     ASSERT(m_namespaceURI == starAtom);
     return true;
 }
 
 } // namespace WebCore
 
 #endif // TagNodeList_h