rem: this._instance = new kServiceConstructor() : this._instance; 
add: this._instance = new BrowserGlue() : this._instance; 
context:   createInstance: function (outer, iid)   {    if (outer != null) throw Cr.NS_ERROR_NO_AGGREGATION;    xpcomCheckInterfaces(iid, kServiceIIds,                           Cr.NS_ERROR_INVALID_ARG);    return this._instance == null ?      this._instance = new kServiceConstructor() : this._instance;  }
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/10234/ebac74c6cdf86590bb28ffdbd2961b3182cd1c4e/nsBrowserGlue.js/clean/browser/components/nsBrowserGlue.js