return PR_FALSE;
if (!aHasAlternateRel && mDocument && mPreferredSheet.IsEmpty()) {      mDocument->SetHeaderData(nsHTMLAtoms::headerDefaultStyle, aTitle);  return PR_FALSE; }  return !aTitle.Equals(mPreferredSheet, nsCaseInsensitiveStringComparator());
CSSLoaderImpl::IsAlternate(const nsString& aTitle){  if (0 < aTitle.Length()) {    return PRBool(! aTitle.EqualsIgnoreCase(mPreferredSheet));  }  return PR_FALSE;}