rem: observerService.Notify(_content, "StartDocumentLoad", urlStr); 
add: observerService.notifyObservers(_content, "StartDocumentLoad", urlStr); 
context:   startDocumentLoad : function(aRequest)  {    const nsIChannel = Components.interfaces.nsIChannel;    var urlStr = aRequest.QueryInterface(nsIChannel).URI.spec;    var observerService = Components.classes["@mozilla.org/observer-service;1"]                                    .getService(Components.interfaces.nsIObserverService);    try {      observerService.Notify(_content, "StartDocumentLoad", urlStr);    } catch (e) {    }  },
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/d18d7e2b176a10ab2598f8549a9bd79b1a50de28/nsBrowserStatusHandler.js/buggy/xpfe/browser/resources/content/nsBrowserStatusHandler.js