Remove form control related virtual methods from Element

Source/core/dom/Element.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Peter Kelly (pmk@post.com)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2013 Apple Inc. 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 451 matching lines @@
     virtual bool willValidate() const { return false; }
     virtual bool isValidFormControlElement() { return false; }
     virtual bool isInRange() const { return false; }
     virtual bool isOutOfRange() const { return false; }
     virtual bool isFrameElementBase() const { return false; }
     virtual bool isPasswordGeneratorButtonElement() const { return false; }
     virtual bool isClearButtonElement() const { return false; }
 
     virtual bool canContainRangeEndPoint() const OVERRIDE { return true; }
 
-    virtual const AtomicString& formControlType() const { return nullAtom; }
-
-    // FIXME: Only HTMLInputElement uses these, they don't need to be virtual.
-    virtual bool wasChangedSinceLastFormControlChangeEvent() const { return false; }
-    virtual void setChangedSinceLastFormControlChangeEvent(bool) { }
-    virtual void dispatchFormControlChangeEvent() { }
-
     // Used for disabled form elements; if true, prevents mouse events from being dispatched
     // to event listeners, and prevents DOMActivate events from being sent at all.
     virtual bool isDisabledFormControl() const { return false; }
 
     bool hasPendingResources() const;
     void setHasPendingResources();
     void clearHasPendingResources();
     virtual void buildPendingResource() { };
 
     enum {
@@ skipping 402 matching lines @@
 }
 
 inline bool isShadowHost(const Element* element)
 {
     return element && element->shadow();
 }
 
 } // namespace
 
 #endif