FINALizing of the Node hierarchy.

Source/core/html/shadow/TextFieldDecorationElement.h

 /*
  * Copyright (C) 2012 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.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 47 matching lines @@
     // This function is called just before detaching the decoration. It must not
     // call functions which updating state of the specified HTMLInputElement
     // object.
     virtual void willDetach(HTMLInputElement*) = 0;
 
     virtual ~TextFieldDecorator();
 };
 
 // A TextFieldDecorationElement object must be in a shadow tree of an
 // HTMLInputElement.
-class TextFieldDecorationElement : public HTMLDivElement {
+class TextFieldDecorationElement FINAL : public HTMLDivElement {
 public:
     static PassRefPtr<TextFieldDecorationElement> create(Document*, TextFieldDecorator*);
     static TextFieldDecorationElement* fromShadowRoot(ShadowRoot*);
     TextFieldDecorator* textFieldDecorator() { return m_textFieldDecorator; }
     void decorate(HTMLInputElement*, bool visible);
 
     virtual bool willRespondToMouseMoveEvents() OVERRIDE;
     virtual bool willRespondToMouseClickEvents() OVERRIDE;
 
 private:
@@ skipping 16 matching lines @@
 inline TextFieldDecorationElement* toTextFieldDecorationElement(Node* node)
 {
     ASSERT(node);
     ASSERT_WITH_SECURITY_IMPLICATION(node->isElementNode());
     ASSERT_WITH_SECURITY_IMPLICATION(toElement(node)->isTextFieldDecoration());
     return static_cast<TextFieldDecorationElement*>(node);
 }
 
 }
 #endif