Use [Reflect=value] for HTMLInputElement.defaultValue

Source/core/html/HTMLInputElement.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2012 Samsung Electronics. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 163 matching lines @@
     // it private virtual in all classes and expose a public method in HTMLFormControlElement to call
     // the private virtual method.
     virtual bool isActivatedSubmit() const OVERRIDE FINAL;
     virtual void setActivatedSubmit(bool flag) OVERRIDE FINAL;
 
     String altText() const;
 
     int maxResults() const { return m_maxResults; }
 
     const AtomicString& defaultValue() const;
-    void setDefaultValue(const AtomicString&);
 
     Vector<String> acceptMIMETypes();
     Vector<String> acceptFileExtensions();
     const AtomicString& alt() const;
 
     void setSize(unsigned);
     void setSize(unsigned, ExceptionState&);
 
     KURL src() const;
 
@@ skipping 199 matching lines @@
     RefPtrWillBeMember<InputTypeView> m_inputTypeView;
     // The ImageLoader must be owned by this element because the loader code assumes
     // that it lives as long as its owning element lives. If we move the loader into
     // the ImageInput object we may delete the loader while this element lives on.
     OwnPtrWillBeMember<HTMLImageLoader> m_imageLoader;
     OwnPtrWillBeMember<ListAttributeTargetObserver> m_listAttributeTargetObserver;
 };
 
 } //namespace
 #endif