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

Source/WebCore/html/HTMLOptGroupElement.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 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 16 matching lines @@
 #include "HTMLElement.h"
 
 namespace WebCore {
     
 class HTMLSelectElement;
 
 class HTMLOptGroupElement : public HTMLElement {
 public:
     static PassRefPtr<HTMLOptGroupElement> create(const QualifiedName&, Document*);
 
+    virtual bool disabled() const OVERRIDE;
     HTMLSelectElement* ownerSelectElement() const;
     
     String groupLabelText() const;
 
 private:
     HTMLOptGroupElement(const QualifiedName&, Document*);
 
     virtual const AtomicString& formControlType() const;
     virtual bool supportsFocus() const;
     virtual bool isFocusable() const;
+    virtual bool isEnabledFormControl() const OVERRIDE { return !disabled(); }
     virtual void parseAttribute(Attribute*) OVERRIDE;
     virtual bool rendererIsNeeded(const NodeRenderingContext&) { return false; }
     virtual void attach();
     virtual void detach();
     virtual void setRenderStyle(PassRefPtr<RenderStyle>);
 
     virtual void childrenChanged(bool changedByParser = false, Node* beforeChange = 0, Node* afterChange = 0, int childCountDelta = 0);
 
     virtual void accessKeyAction(bool sendMouseEvents);
     
     virtual RenderStyle* nonRendererRenderStyle() const;
     
     void recalcSelectOptions();
 
     RefPtr<RenderStyle> m_style;
 };
 
 } //namespace
 
 #endif