Remove unnecessary includes from KURL.h

Source/core/css/CSSVariablesMap.h

 /*
  * Copyright (C) 2013 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 12 matching lines @@
  * 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 CSSVariablesMap_h
 #define CSSVariablesMap_h
 
 #include "RuntimeEnabledFeatures.h"
 #include "core/css/CSSVariablesMapForEachCallback.h"
+#include "wtf/PassOwnPtr.h"
 #include "wtf/RefCounted.h"
 #include "wtf/text/WTFString.h"
 
 namespace WebCore {
 
 class CSSStyleDeclaration;
 class CSSVariablesIterator;
 class ExceptionState;
 
 class CSSVariablesMap FINAL : public RefCounted<CSSVariablesMap> {
@@ skipping 24 matching lines @@
     void forEach(PassOwnPtr<CSSVariablesMapForEachCallback>, ScriptValue* thisArg) const;
 
     CSSStyleDeclaration* m_styleDeclaration;
     typedef Vector<CSSVariablesIterator*> Iterators;
     mutable Iterators m_activeIterators;
 };
 
 } // namespace WebCore
 
 #endif // CSSVariablesMap_h