Clean up after getPropertyCSSValue

Source/core/css/CSSFilterValue.h

 /*
  * Copyright (C) 2011 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 43 matching lines @@
 
     static PassRefPtrWillBeRawPtr<CSSFilterValue> create(FilterOperationType type)
     {
         return adoptRefWillBeNoop(new CSSFilterValue(type));
     }
 
     String customCSSText() const;
 
     FilterOperationType operationType() const { return m_type; }
 
-    PassRefPtrWillBeRawPtr<CSSFilterValue> cloneForCSSOM() const;
-
     bool equals(const CSSFilterValue&) const;
 
     void traceAfterDispatch(Visitor* visitor) { CSSValueList::traceAfterDispatch(visitor); }
 
 private:
     explicit CSSFilterValue(FilterOperationType);
-    explicit CSSFilterValue(const CSSFilterValue& cloneFrom);
 
     FilterOperationType m_type;
 };
 
 DEFINE_CSS_VALUE_TYPE_CASTS(CSSFilterValue, isFilterValue());
 
 }
 
 
 #endif