PRInt32 newHint = ComputeChangeHint(aPropID, oldValue, aValue); if (aChangeHint < newHint) { aChangeHint = newHint; }
NS_UpdateHint(aChangeHint, ComputeChangeHint(aPropID, oldValue, aValue));
nsresult CSSParserImpl::AppendValue(nsCSSDeclaration* aDeclaration, nsCSSProperty aPropID,                                    const nsCSSValue& aValue, PRInt32& aChangeHint){  nsresult  result;  nsCSSValue  oldValue;  result = aDeclaration->GetValue(aPropID, oldValue);  if (aValue != oldValue) {    result = aDeclaration->AppendValue(aPropID, aValue);    PRInt32 newHint = ComputeChangeHint(aPropID, oldValue, aValue);    if (aChangeHint < newHint) {      aChangeHint = newHint;    }  }  return result;}