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

Source/core/editing/Editor.h

 /*
  * Copyright (C) 2006, 2007, 2008 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 12 matching lines @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
  */
 
 #ifndef Editor_h
 #define Editor_h
 
 #include "core/dom/ClipboardAccessPolicy.h"
 #include "core/dom/DocumentMarker.h"
 #include "core/editing/EditAction.h"
 #include "core/editing/EditingBehavior.h"
-#include "core/editing/EditingStyle.h"
 #include "core/editing/EditorInsertAction.h"
 #include "core/editing/FindOptions.h"
 #include "core/editing/FrameSelection.h"
 #include "core/editing/TextIterator.h"
 #include "core/editing/VisibleSelection.h"
 #include "core/editing/WritingDirection.h"
 #include "core/page/FrameDestructionObserver.h"
 #include "core/platform/graphics/Color.h"
 #include "core/platform/text/TextChecking.h"
 
@@ skipping 345 matching lines @@
 
 inline bool Editor::markedTextMatchesAreHighlighted() const
 {
     return m_areMarkedTextMatchesHighlighted;
 }
 
 
 } // namespace WebCore
 
 #endif // Editor_h