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

Source/core/html/parser/XSSAuditorDelegate.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:
  * 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 13 matching lines @@
  */
 
 #ifndef XSSAuditorDelegate_h
 #define XSSAuditorDelegate_h
 
 #include "weborigin/KURL.h"
 #include "wtf/OwnPtr.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/Vector.h"
 #include "wtf/text/TextPosition.h"
-#include "wtf/text/WTFString.h"
 
 namespace WebCore {
 
 class Document;
 class FormData;
 
 class XSSInfo {
 public:
     static PassOwnPtr<XSSInfo> create(bool didBlockEntirePage, bool didSendXSSProtectionHeader, bool didSendCSPHeader)
     {
@@ skipping 27 matching lines @@
     Document* m_document;
     bool m_didSendNotifications;
     KURL m_reportURL;
 };
 
 typedef Vector<OwnPtr<XSSInfo> > XSSInfoStream;
 
 }
 
 #endif