Rename/tweak some StylePropertySet/CSSStyleDeclaration copying functions.

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 13 matching lines @@
 #include "core/css/CSSStyleDeclaration.h"
 #include "core/rendering/style/RenderStyleConstants.h"
 #include <wtf/RefPtr.h>
 #include <wtf/text/WTFString.h>
 
 namespace WebCore {
 
 class CSSPrimitiveValue;
 class CSSValueList;
 class Color;
+class MutableStylePropertySet;
 class Node;
 class RenderObject;
 class RenderStyle;
 class SVGPaint;
 class ShadowData;
 class StylePropertySet;
 class StylePropertyShorthand;
 
 class CustomFilterNumberParameter;
 class CustomFilterParameter;
 
 enum EUpdateLayout { DoNotUpdateLayout = false, UpdateLayout = true };
 
 class CSSComputedStyleDeclaration : public CSSStyleDeclaration {
 public:
     static PassRefPtr<CSSComputedStyleDeclaration> create(PassRefPtr<Node> node, bool allowVisitedStyle = false, const String& pseudoElementName = String())
     {
         return adoptRef(new CSSComputedStyleDeclaration(node, allowVisitedStyle, pseudoElementName));
     }
     virtual ~CSSComputedStyleDeclaration();
 
     virtual void ref() OVERRIDE;
     virtual void deref() OVERRIDE;
 
     PassRefPtr<CSSValue> getPropertyCSSValue(CSSPropertyID) const;
     String getPropertyValue(CSSPropertyID) const;
     bool getPropertyPriority(CSSPropertyID) const;
 
-    virtual PassRefPtr<StylePropertySet> copy() const;
+    virtual PassRefPtr<MutableStylePropertySet> copyProperties() const OVERRIDE;
 
     PassRefPtr<CSSValue> getPropertyCSSValue(CSSPropertyID, EUpdateLayout) const;
     PassRefPtr<CSSValue> getFontSizeCSSValuePreferringKeyword() const;
     bool useFixedFontDefaultSize() const;
     PassRefPtr<CSSValue> getSVGPropertyCSSValue(CSSPropertyID, EUpdateLayout) const;
 
-    PassRefPtr<StylePropertySet> copyPropertiesInSet(const Vector<CSSPropertyID>&) const;
+    PassRefPtr<MutableStylePropertySet> copyPropertiesInSet(const Vector<CSSPropertyID>&) 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
@@ skipping 32 matching lines @@
 
     RefPtr<Node> m_node;
     PseudoId m_pseudoElementSpecifier;
     bool m_allowVisitedStyle;
     unsigned m_refCount;
 };
 
 } // namespace WebCore
 
 #endif // CSSComputedStyleDeclaration_h