aResult = NS_ConvertUCS2toUTF8(*mArray->StringAt(mIndex++));
CopyUTF16toUTF8(*mArray->StringAt(mIndex++), aResult);
nsStringEnumerator::GetNext(nsACString& aResult){    NS_ENSURE_TRUE(mIndex < Count(), NS_ERROR_UNEXPECTED);        // XXX this needs CopyUCS2toUTF8(aResult,    // *mArray->StringAt(mIndex++));    if (mIsUnicode)        aResult = NS_ConvertUCS2toUTF8(*mArray->StringAt(mIndex++));    else        aResult = *mCArray->CStringAt(mIndex++);        return NS_OK;}