remove memoryinstrumentation

Source/core/css/CSSComputedStyleDeclaration.h

 /*
  * Copyright (C) 2004 Zack Rusin <zack@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 Lesser 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 53 matching lines @@
 
     PassRefPtr<CSSValue> getPropertyCSSValue(CSSPropertyID, EUpdateLayout) const;
     PassRefPtr<CSSValue> getFontSizeCSSValuePreferringKeyword() const;
     bool useFixedFontDefaultSize() const;
 #if ENABLE(SVG)
     PassRefPtr<CSSValue> getSVGPropertyCSSValue(CSSPropertyID, EUpdateLayout) const;
 #endif
 
     PassRefPtr<StylePropertySet> copyPropertiesInSet(const CSSPropertyID* set, unsigned length) const;
 
-    virtual void reportMemoryUsage(MemoryObjectInfo*) const OVERRIDE;
-
 private:
     CSSComputedStyleDeclaration(PassRefPtr<Node>, bool allowVisitedStyle, const String&);
 
     // The styled node is either the node passed into getComputedStyle, or the
     // PseudoElement for :before and :after if they exist.
     // FIXME: This should be styledElement since in JS getComputedStyle only works
     // on Elements, but right now editing creates these for text nodes. We should fix
     // that.
     Node* styledNode() const;
 
@@ skipping 31 matching lines @@
 
     RefPtr<Node> m_node;
     PseudoId m_pseudoElementSpecifier;
     bool m_allowVisitedStyle;
     unsigned m_refCount;
 };
 
 } // namespace WebCore
 
 #endif // CSSComputedStyleDeclaration_h