rem: _getContentShell: function(doc, feedURI) { 
add: _getContentShell: function(doc) { 
context:   _getContentShell: function(doc, feedURI) {    var browsers = getBrowser().browsers;    for (var i = 0; i < browsers.length; i++) {      var shell = findChildShell(doc, browsers[i].docShell, feedURI);      if (shell)        return { shell: shell, browser: browsers[i] };    }    return null;  },
meta: 5459	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5459/c1cf53bd816ac3cc29ed05c5c59a9087c70d42aa/browser.js/clean/browser/base/content/browser.js