PRBool CSSParserImpl::ParseVariant(PRInt32& aErrorCode, nsICSSDeclaration* aDeclaration, PRInt32 aPropID, PRInt32 aVariantMask, const PRInt32 aKeywordTable[],
PRBool CSSParserImpl::ParseVariant(PRInt32& aErrorCode, nsCSSValue& aValue, PRInt32 aVariantMask, const PRInt32 aKeywordTable[],
PRBool CSSParserImpl::ParseVariant(PRInt32& aErrorCode,                                   nsICSSDeclaration* aDeclaration,                                   PRInt32 aPropID,                                   PRInt32 aVariantMask, const PRInt32 aKeywordTable[],                                   PRInt32& aParsedVariant){  nsCSSValue  value;  if (ParseVariant(aErrorCode, value, aVariantMask, aKeywordTable, aParsedVariant)) {    aDeclaration->AppendValue(aPropID, value);    return PR_TRUE;  }  return PR_FALSE;}