Slim includes in CSSValue.h

third_party/WebKit/Source/core/css/CSSGridLineNamesValue.h

 /*
  * Copyright (C) 2013 Igalia, S.L. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 14 matching lines @@
  * DATA, OR 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 CSSGridLineNamesValue_h
 #define CSSGridLineNamesValue_h
 
 #include "core/css/CSSValueList.h"
-#include "wtf/PassRefPtr.h"
 
 namespace blink {
 
 class CSSGridLineNamesValue : public CSSValueList {
 public:
     static CSSGridLineNamesValue* create()
     {
         return new CSSGridLineNamesValue();
     }
 
     String customCSSText() const;
 
     DEFINE_INLINE_TRACE_AFTER_DISPATCH() { CSSValueList::traceAfterDispatch(visitor); }
 
 private:
     CSSGridLineNamesValue();
 };
 
 DEFINE_CSS_VALUE_TYPE_CASTS(CSSGridLineNamesValue, isGridLineNamesValue());
 } // namespace blink
 
 #endif