aCssText.Assign(mSelectorText);
mSelector.ToString( aCssText ); if (mDeclaration) { nsAutoString   tempString; mDeclaration->ToString( tempString ); aCssText.Append( tempString ); }
CSSStyleRuleImpl::GetCssText(nsAWritableString& aCssText){  aCssText.Assign(mSelectorText);  // XXX TBI append declaration too  return NS_OK;}