code: function _searchIfRequired() {
          if (!FindUtils.isInstantSearchDisabled() && _findBar && _findBar._options.multifile && !_findBar._options.replace) {
              setTimeout(_defferedSearch, 100);
          }
      }
docs: Schedules a search on search scope/filter changes. Have to schedule as when we listen to this event, the file filters
  might not have been updated yet.