Remove unused includes from core/{editing,fileapi,history,html}

Source/core/html/ImageInputType.h

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2012 Samsung Electronics. 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
@@ skipping 17 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 ImageInputType_h
 #define ImageInputType_h
 
 #include "core/html/BaseButtonInputType.h"
 #include "core/platform/graphics/IntPoint.h"
-#include <wtf/OwnPtr.h>
 
 namespace WebCore {
 
 class ImageInputType : public BaseButtonInputType {
 public:
     static PassOwnPtr<InputType> create(HTMLInputElement*);
 
 private:
     ImageInputType(HTMLInputElement*);
     virtual const AtomicString& formControlType() const OVERRIDE;
@@ skipping 12 matching lines @@
     virtual bool shouldRespectHeightAndWidthAttributes() OVERRIDE;
     virtual unsigned height() const OVERRIDE;
     virtual unsigned width() const OVERRIDE;
 
     IntPoint m_clickLocation; // Valid only during HTMLFormElement::prepareForSubmission().
 };
 
 } // namespace WebCore
 
 #endif // ImageInputType_h