Remove duplicated headers from core/

Source/core/frame/UseCounter.cpp

 
 /*
  * Copyright (C) 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:
  * 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
@@ skipping 17 matching lines @@
 #include "core/frame/UseCounter.h"
 
 #include "core/css/CSSStyleSheet.h"
 #include "core/css/StyleSheetContents.h"
 #include "core/dom/Document.h"
 #include "core/dom/ExecutionContext.h"
 #include "core/frame/DOMWindow.h"
 #include "core/page/Page.h"
 #include "core/page/PageConsole.h"
 #include "public/platform/Platform.h"
-#include "wtf/text/WTFString.h"
 
 namespace WebCore {
 
 static int totalPagesMeasuredCSSSampleId() { return 1; }
 
 // FIXME : This mapping should be autogenerated. This function should
 //         be moved to a separate file and a script run at build time
 //         to detect new values in CSSPropertyID and add them to the
 //         end of this function. This file would be checked in.
 //         https://code.google.com/p/chromium/issues/detail?id=234940
@@ skipping 677 matching lines @@
 UseCounter* UseCounter::getFrom(const StyleSheetContents* sheetContents)
 {
     // FIXME: We may want to handle stylesheets that have multiple owners
     //        http://crbug.com/242125
     if (sheetContents && sheetContents->hasSingleOwnerNode())
         return getFrom(sheetContents->singleOwnerDocument());
     return 0;
 }
 
 } // namespace WebCore