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: 5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5872/740511849f5a32390e03f5e466b8db89fbeac502/nsBrowserStatusHandler.js/clean/suite/browser/nsBrowserStatusHandler.js