bool
DocAccessibleChild::RecvDescription(const uint64_t& aID, nsString* aDesc)
{
  Accessible* acc = IdToAccessible(aID);
  if (!acc)
    return true;

  acc->Description(*aDesc);
  return true;
}
void
HTMLComboboxAccessible::Description(nsString& aDescription)
{
  aDescription.Truncate();
  // First check to see if combo box itself has a description, perhaps through
  // tooltip (title attribute) or via aria-describedby
  Accessible::Description(aDescription);
  if (!aDescription.IsEmpty())
    return;

  // Otherwise use description of selected option.
  Accessible* option = SelectedOption();
  if (option)
    option->Description(aDescription);
}