B2G/gecko/browser/devtools/styleinspector/CssLogic.jsm
/**
   * Retrieve the array holding CssSelectorInfo objects for each of the
   * unmatched selectors, from each of the unmatched rules. Only selectors
   * coming from allowed stylesheets are included in the array.
   *
   * @return {array} the list of CssSelectorInfo objects of selectors that do
   * not match the highlighted element or its parents.
   */
Retrieve the array holding CssSelectorInfo objects for each of the
unmatched selectors, from each of the unmatched rules. Only selectors
coming from allowed stylesheets are included in the array.

@return {array} the list of CssSelectorInfo objects of selectors that do
not match the highlighted element or its parents.
Retrieve the array holding CssSelectorInfo objects for each of the unmatched selectors from each of the unmatched rules . Only selectors coming from allowed stylesheets are included in the array . @return { array } the list of CssSelectorInfo objects of selectors that do not match the highlighted element or its parents .
get unmatchedSelectors()
  {
    if (!this._unmatchedSelectors) {
      this._findUnmatchedSelectors();
    } else if (this.needRefilter) {
      this._refilterSelectors();
    }
    return this._unmatchedSelectors;
  }
get unmatchedSelectors ( ) { if ( ! this . _unmatchedSelectors ) { this . _findUnmatchedSelectors ( ) ; } else if ( this . needRefilter ) { this . _refilterSelectors ( ) ; } return this . _unmatchedSelectors ; }
Retrieve the array holding CssSelectorInfo objects for each of the
 unmatched selectors, from each of the unmatched rules.
Retrieve the array holding CssSelectorInfo objects for each of the unmatched selectors from each of the unmatched rules .