rem: get closedWindowData() { return this._closedWindows; 
add: get opaqueState() { return this._getCurrentState(); 
context:   get closedWindowData() {    return this._closedWindows;  },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/47930b335db787b8746ee09e75becc57ee4e6e61/nsSessionStore.js/clean/browser/components/sessionstore/src/nsSessionStore.js