[bindings] Remove custom setter used in CSSStyleDeclaration

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 16 matching lines @@
 #include "wtf/Forward.h"
 #include "wtf/Noncopyable.h"
 
 namespace blink {
 
 class CSSRule;
 class CSSStyleSheet;
 class CSSValue;
 class ExceptionState;
 class MutableStylePropertySet;
+class ScriptState;
 
 class CORE_EXPORT CSSStyleDeclaration : public NoBaseWillBeGarbageCollectedFinalized<CSSStyleDeclaration>, public ScriptWrappable {
     DEFINE_WRAPPERTYPEINFO();
     WTF_MAKE_NONCOPYABLE(CSSStyleDeclaration); WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED(CSSStyleDeclaration);
 public:
     virtual ~CSSStyleDeclaration() { }
 
 #if !ENABLE(OILPAN)
     virtual void ref() = 0;
     virtual void deref() = 0;
@@ skipping 15 matching lines @@
     // Use the non-virtual methods in the concrete subclasses when possible.
     // The CSSValue returned by this function should not be exposed to the web as it may be used by multiple documents at the same time.
     virtual PassRefPtrWillBeRawPtr<CSSValue> getPropertyCSSValueInternal(CSSPropertyID) = 0;
     virtual String getPropertyValueInternal(CSSPropertyID) = 0;
     virtual void setPropertyInternal(CSSPropertyID, const String& value, bool important, ExceptionState&) = 0;
 
     virtual PassRefPtrWillBeRawPtr<MutableStylePropertySet> copyProperties() const = 0;
 
     virtual bool cssPropertyMatches(CSSPropertyID, const CSSValue*) const = 0;
     virtual CSSStyleSheet* parentStyleSheet() const { return 0; }
+    virtual bool anonymousNamedSetter(ScriptState*, const String& name, const String& value, ExceptionState&);
 
     DEFINE_INLINE_VIRTUAL_TRACE() { }
 
 protected:
     CSSStyleDeclaration() { }
 };
 
 } // namespace blink
 
 #endif // CSSStyleDeclaration_h