add: } 
context:     QueryInterface : function(iid)    {     if (iid.equals(Components.interfaces.nsIObserver) || iid.equals(Components.interfaces.nsISupportsWeakReference))      return this;          throw Components.results.NS_NOINTERFACE;    }
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/fd49bd0a8ee28d3e5594acadf820a172041b9c90/browser.js/buggy/xpfe/browser/resources/content/browser.js