Remove CSS_SHADERS compile-time flag.

Source/WebCore/rendering/style/StylePendingShader.h

 /*
  * Copyright (C) 2011 Adobe Systems Incorporated. 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.
@@ skipping 12 matching lines @@
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
  * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  */
 
 #ifndef StylePendingShader_h
 #define StylePendingShader_h
 
-#if ENABLE(CSS_SHADERS)
-
 #include "CSSValue.h"
 #include "StyleShader.h"
 #include "WebKitCSSShaderValue.h"
 #include <wtf/PassRefPtr.h>
 
 namespace WebCore {
 
 class WebKitCSSShaderValue;
 
 class StylePendingShader : public StyleShader {
 public:
     static PassRefPtr<StylePendingShader> create(WebKitCSSShaderValue* value) { return adoptRef(new StylePendingShader(value)); }
     
     virtual PassRefPtr<CSSValue> cssValue() const { return m_value; }
     WebKitCSSShaderValue* cssShaderValue() const { return m_value; }
 private:
     StylePendingShader(WebKitCSSShaderValue* value)
         : m_value(value)
     {
          m_isPendingShader = true;
     }
     
     WebKitCSSShaderValue* m_value; // Not retained; it owns us.
 };
 
 }
-#endif // ENABLE(CSS_SHADERS)
 
 #endif // StylePendingShader_h