Remove some unused includes from core/css and core/dom

Source/core/css/CSSCalculationValue.cpp

 /*
  * Copyright (C) 2011, 2012 Google Inc. 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 13 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * 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.
  */
 
 #include "config.h"
 #include "core/css/CSSCalculationValue.h"
 
-#include "core/css/CSSValueList.h"
 #include "core/css/resolver/StyleResolver.h"
 #include "core/dom/WebCoreMemoryInstrumentation.h"
-#include "core/platform/Length.h"
 
 #include <wtf/OwnPtr.h>
 #include <wtf/PassOwnPtr.h>
 #include <wtf/text/StringBuilder.h>
 
 static const int maxExpressionDepth = 100;
 
 enum ParseState {
     OK,
     TooDeep,
@@ skipping 496 matching lines @@
     RefPtr<CSSCalcExpressionNode> expression;
     
     if (equalIgnoringCase(name, "calc(") || equalIgnoringCase(name, "-webkit-calc("))
         expression = parser.parseCalc(parserValueList);    
     // FIXME calc (http://webkit.org/b/16662) Add parsing for min and max here
 
     return expression ? adoptRef(new CSSCalcValue(expression, range)) : 0;
 }
 
 } // namespace WebCore