Relation HTMLOutputAccessible::RelationByType(RelationType aType) const {
  Relation rel = AccessibleWrap::RelationByType(aType);
  if (aType == RelationType::CONTROLLED_BY)
    rel.AppendIter(new IDRefsIterator(mDoc, mContent, nsGkAtoms::_for));

  return rel;
}
Relation
nsHTMLOutputAccessible::RelationByType(PRUint32 aType)
{
  Relation rel = nsAccessibleWrap::RelationByType(aType);
  if (aType == nsIAccessibleRelation::RELATION_CONTROLLED_BY)
    rel.AppendIter(new IDRefsIterator(mDoc, mContent, nsGkAtoms::_for));

  return rel;
}