NS_InitCaseConversion();
      PRBool operator()( PRUnichar lhs, PRUnichar rhs ) const {          PRUnichar lhsUpper; PRUnichar rhsUpper;          gCaseConv->ToUpper(lhs, &lhsUpper);          gCaseConv->ToUpper(rhs, &rhsUpper);          return lhsUpper = rhsUpper;      }