Merge 118772 - REGRESSION(r109729): The optgroup element's "disabled" attribute has no effect to re…

Source/WebCore/html/HTMLOptGroupElement.cpp

 /*
  * 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, 2010 Apple Inc. All rights reserved.
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  *
  * 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 31 matching lines @@
     : HTMLElement(tagName, document)
 {
     ASSERT(hasTagName(optgroupTag));
 }
 
 PassRefPtr<HTMLOptGroupElement> HTMLOptGroupElement::create(const QualifiedName& tagName, Document* document)
 {
     return adoptRef(new HTMLOptGroupElement(tagName, document));
 }
 
+bool HTMLOptGroupElement::disabled() const
+{
+    return fastHasAttribute(disabledAttr);
+}
+
 bool HTMLOptGroupElement::supportsFocus() const
 {
     return HTMLElement::supportsFocus();
 }
 
 bool HTMLOptGroupElement::isFocusable() const
 {
     // Optgroup elements do not have a renderer so we check the renderStyle instead.
     return supportsFocus() && renderStyle() && renderStyle()->display() != NONE;
 }
@@ skipping 74 matching lines @@
 
 void HTMLOptGroupElement::accessKeyAction(bool)
 {
     HTMLSelectElement* select = ownerSelectElement();
     // send to the parent to bring focus to the list box
     if (select && !select->focused())
         select->accessKeyAction(false);
 }
 
 } // namespace