FINALizing of the Node hierarchy.

Source/core/dom/ShadowRoot.h

 /*
  * Copyright (C) 2011 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Neither the name of Google Inc. nor the names of its
@@ skipping 22 matching lines @@
 #include "Element.h"
 #include "ExceptionCode.h"
 #include "TreeScope.h"
 #include <wtf/DoublyLinkedList.h>
 
 namespace WebCore {
 
 class ElementShadow;
 class ScopeContentDistribution;
 
-class ShadowRoot : public DocumentFragment, public TreeScope, public DoublyLinkedListNode<ShadowRoot> {
+class ShadowRoot FINAL : public DocumentFragment, public TreeScope, public DoublyLinkedListNode<ShadowRoot> {
     friend class WTF::DoublyLinkedListNode<ShadowRoot>;
 public:
     // FIXME: We will support multiple shadow subtrees, however current implementation does not work well
     // if a shadow root is dynamically created. So we prohibit multiple shadow subtrees
     // in several elements for a while.
     // See https://bugs.webkit.org/show_bug.cgi?id=77503 and related bugs.
     enum ShadowRootType {
         UserAgentShadowRoot = 0,
         AuthorShadowRoot
     };
@@ skipping 80 matching lines @@
 }
 
 inline ShadowRoot* toShadowRoot(Node* node)
 {
     return const_cast<ShadowRoot*>(toShadowRoot(static_cast<const Node*>(node)));
 }
 
 } // namespace
 
 #endif