Remove CSS_SHADERS compile-time flag.

Source/WebCore/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 21 matching lines @@
 class CSSValueList;
 class Color;
 class Node;
 class RenderObject;
 class RenderStyle;
 class SVGPaint;
 class ShadowData;
 class StylePropertySet;
 class StylePropertyShorthand;
 
-#if ENABLE(CSS_SHADERS)
 class CustomFilterNumberParameter;
 class CustomFilterParameter;
-#endif
 
 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();
@@ skipping 65 matching lines @@
 
     RefPtr<Node> m_node;
     PseudoId m_pseudoElementSpecifier;
     bool m_allowVisitedStyle;
     unsigned m_refCount;
 };
 
 } // namespace WebCore
 
 #endif // CSSComputedStyleDeclaration_h