nsCOMPtr<textControlPlace> textControlFrame(do_QueryInterface(formControlFrame));
nsITextControlFrame* textControlFrame = nsnull; CallQueryInterface(formControlFrame, &textControlFrame);
nsHTMLInputElement::SetSelectionRange(PRInt32 aSelectionStart,                                      PRInt32 aSelectionEnd){  nsIFormControlFrame* formControlFrame = GetFormControlFrame(PR_TRUE);  if (formControlFrame) {    nsCOMPtr<textControlPlace>      textControlFrame(do_QueryInterface(formControlFrame));    if (textControlFrame)      textControlFrame->SetSelectionRange(aSelectionStart, aSelectionEnd);  }  return NS_OK;}