Support indexed setter generation

Source/core/css/CSSStyleDeclaration.h

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2008, 2012 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.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 60 matching lines @@
     virtual String getPropertyValueInternal(CSSPropertyID) = 0;
     virtual void setPropertyInternal(CSSPropertyID, const String& value, bool important, ExceptionCode&) = 0;
 
     virtual PassRefPtr<MutableStylePropertySet> copyProperties() const = 0;
 
     virtual bool cssPropertyMatches(CSSPropertyID, const CSSValue*) const = 0;
     virtual CSSStyleSheet* parentStyleSheet() const { return 0; }
 
     virtual void reportMemoryUsage(MemoryObjectInfo*) const = 0;
     void anonymousNamedGetter(const AtomicString& name, bool&, String&, bool&, float&);
-    bool anonymousNamedSetter(const AtomicString& name, const String& value, ExceptionCode&);
+    bool anonymousNamedSetter(const AtomicString& name, const String& value, bool isValueNull, bool isValueUndefined, ExceptionCode&);
 
     static CSSPropertyInfo* cssPropertyInfo(const String& propertyName);
 
 protected:
     CSSStyleDeclaration()
     {
         ScriptWrappable::init(this);
     }
 };
 
 } // namespace WebCore
 
 #endif // CSSStyleDeclaration_h