NS_IMETHOD HasStyleSheets(PRBool* aResult) { *aResult = (mStyleSheetList != nsnull); return NS_OK; };
NS_IMETHOD HasStyleSheets(PRBool* aResult) { *aResult = (mResources && mResources->mStyleSheetList); return NS_OK; };
  NS_IMETHOD HasStyleSheets(PRBool* aResult) { *aResult = (mStyleSheetList != nsnull); return NS_OK; };