Remove unneeded headers from ScriptExecutionContext.h

Source/WebCore/dom/ScriptExecutionContext.h

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  * 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 13 matching lines @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  */
 
 #ifndef ScriptExecutionContext_h
 #define ScriptExecutionContext_h
 
 #include "ActiveDOMObject.h"
 #include "ConsoleTypes.h"
 #include "KURL.h"
-#include "ScriptCallStack.h"
-#include "ScriptState.h"
 #include "SecurityContext.h"
 #include "Supplementable.h"
 #include <wtf/Forward.h>
 #include <wtf/HashSet.h>
 #include <wtf/Noncopyable.h>
 #include <wtf/OwnPtr.h>
-#include <wtf/PassOwnPtr.h>
-#include <wtf/Threading.h>
-#include <wtf/text/StringHash.h>
 
 namespace WebCore {
 
 class CachedScript;
 class DatabaseContext;
 class DOMTimer;
 class EventListener;
 class EventQueue;
 class EventTarget;
 class MessagePort;
 class PublicURLManager;
+class ScriptCallStack;
+class ScriptState;
 
 class ScriptExecutionContext : public SecurityContext, public Supplementable<ScriptExecutionContext> {
 public:
     ScriptExecutionContext();
     virtual ~ScriptExecutionContext();
 
     virtual bool isDocument() const { return false; }
     virtual bool isWorkerContext() const { return false; }
 
     virtual bool isContextThread() const { return true; }
@@ skipping 139 matching lines @@
     bool m_activeDOMObjectsAreStopped;
 
     OwnPtr<PublicURLManager> m_publicURLManager;
 
     RefPtr<DatabaseContext> m_databaseContext;
 };
 
 } // namespace WebCore
 
 #endif // ScriptExecutionContext_h