Implement select element list box with shadow DOM.

Source/WebCore/html/HTMLOptionElement.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, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Google 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
@@ skipping 43 matching lines @@
     HTMLDataListElement* ownerDataListElement() const;
 #endif
     HTMLSelectElement* ownerSelectElement() const;
 
     String label() const;
     void setLabel(const String&);
 
     bool ownElementDisabled() const { return m_disabled; }
 
     virtual bool isDisabledFormControl() const OVERRIDE;
+    virtual PassRefPtr<RenderStyle> customStyleForRenderer() OVERRIDE;
 
     String textIndentedToRespectGroupLabel() const;
 
     void setSelectedState(bool);
 
 private:
     HTMLOptionElement(const QualifiedName&, Document*);
 
     virtual bool supportsFocus() const;
     virtual bool isFocusable() const;
-    virtual bool rendererIsNeeded(const NodeRenderingContext&) { return false; }
-    virtual void attach();
-    virtual void detach();
 
     virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
 
     virtual InsertionNotificationRequest insertedInto(ContainerNode*) OVERRIDE;
     virtual void accessKeyAction(bool);
 
     virtual void childrenChanged(bool changedByParser = false, Node* beforeChange = 0, Node* afterChange = 0, int childCountDelta = 0);
 
-    // <option> never has a renderer so we manually manage a cached style.
-    void updateNonRenderStyle();
-    virtual RenderStyle* nonRendererStyle() const OVERRIDE;
-    virtual PassRefPtr<RenderStyle> customStyleForRenderer() OVERRIDE;
-
-    void didRecalcStyle(StyleChange) OVERRIDE;
-
     String collectOptionInnerText() const;
+    void updateLabel();
 
     bool m_disabled;
     bool m_isSelected;
-    RefPtr<RenderStyle> m_style;
 };
 
 HTMLOptionElement* toHTMLOptionElement(Node*);
 const HTMLOptionElement* toHTMLOptionElement(const Node*);
 void toHTMLOptionElement(const HTMLOptionElement*); // This overload will catch anyone doing an unnecessary cast.
 
 #ifdef NDEBUG
 
 // The debug versions of these, with assertions, are not inlined.
 
 inline HTMLOptionElement* toHTMLOptionElement(Node* node)
 {
     return static_cast<HTMLOptionElement*>(node);
 }
 
 inline const HTMLOptionElement* toHTMLOptionElement(const Node* node)
 {
     return static_cast<const HTMLOptionElement*>(node);
 }
 
 #endif
 
 } // namespace
 
 #endif