B2G/gecko/browser/devtools/styleinspector/CssLogic.jsm
/**
   * Tells if the stylesheet matches the current browser view media.
   * @return {boolean} true if this stylesheet matches the current browser view
   * media, or false otherwise.
   */
Tells if the stylesheet matches the current browser view media.
@return {boolean} true if this stylesheet matches the current browser view
media, or false otherwise.
Tells if the stylesheet matches the current browser view media . @return { boolean } true if this stylesheet matches the current browser view media or false otherwise .
get mediaMatches()
  {
    if (this._mediaMatches === null) {
      this._mediaMatches = this._cssLogic.mediaMatches(this.domSheet);
    }
    return this._mediaMatches;
  }
get mediaMatches ( ) { if ( this . _mediaMatches === null ) { this . _mediaMatches = this . _cssLogic . mediaMatches ( this . domSheet ) ; } return this . _mediaMatches ; }
Tells if the stylesheet matches the current browser view media.
Tells if the stylesheet matches the current browser view media .