Rename HTMLElement::form() to formOwner().

Source/core/html/HTMLLegendElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2010 Apple Inc. All rights reserved.
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  *
  * 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 64 matching lines @@
     if (HTMLFormControlElement* control = associatedControl())
         control->focus(false, direction);
 }
 
 void HTMLLegendElement::accessKeyAction(bool sendMouseEvents)
 {
     if (HTMLFormControlElement* control = associatedControl())
         control->accessKeyAction(sendMouseEvents);
 }
 
-HTMLFormElement* HTMLLegendElement::virtualForm() const
+HTMLFormElement* HTMLLegendElement::form() const
 {
     // According to the specification, If the legend has a fieldset element as
     // its parent, then the form attribute must return the same value as the
     // form attribute on that fieldset element. Otherwise, it must return null.
     ContainerNode* fieldset = parentNode();
     if (!fieldset || !fieldset->hasTagName(fieldsetTag))
         return 0;
 
-    return toHTMLFieldSetElement(fieldset)->form();
+    return toHTMLFieldSetElement(fieldset)->formOwner();
 }
 
 } // namespace