code: function (total,silent) {
          if (Paginator.isNumeric(total) && +total >= 0 &&
              +total !== this.get('totalRecords')) {
              if (this.get('updateOnChange') || silent) {
                  this.set('totalRecords',total);
              } else {
                  this.fireEvent('changeRequest',
                      this.getState({'totalRecords':+total}));
              }
          }
      }
docs: Set the total number of records.
  @method setTotalRecords
  @param total {number} the new total number of records
  @param silent {boolean} whether to forcibly avoid firing the changeRequest event