Merge 163945 "Fix assertion failure in FormAssociatedElement::fo..."

Source/core/html/FormAssociatedElement.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, 2007 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 106 matching lines @@
         return element->findFormAncestor();
 
     return currentAssociatedForm;
 }
 
 void FormAssociatedElement::formRemovedFromTree(const Node* formRoot)
 {
     ASSERT(m_form);
     if (toHTMLElement(this)->highestAncestor() == formRoot)
         return;
-    RefPtr<HTMLElement> protector(toHTMLElement(this));
     setForm(0);
 }
 
 void FormAssociatedElement::setForm(HTMLFormElement* newForm)
 {
     if (m_form == newForm)
         return;
     willChangeForm();
     if (m_form)
         m_form->removeFormElement(this);
@@ skipping 161 matching lines @@
     , m_element(element)
 {
 }
 
 void FormAttributeTargetObserver::idTargetChanged()
 {
     m_element->formAttributeTargetChanged();
 }
 
 } // namespace Webcore