rem: leakDetector.vtable.markObject(document, true); leakDetector.vtable.traceObject(window._content, leakDetector.verbose); leakDetector.vtable.markObject(document, false); 
add: leakDetector.markObject(document, true); leakDetector.traceObject(window._content, leakDetector.verbose); leakDetector.markObject(document, false); 
context: function traceDocument(){    // keep the chrome document out of the dump.    leakDetector.vtable.markObject(document, true);    leakDetector.vtable.traceObject(window._content, leakDetector.verbose);    leakDetector.vtable.markObject(document, false);}
meta: 5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5872/6747183e92a490ae29190179c498bef3b6ca1b88/navigator.js/buggy/xpfe/browser/resources/content/navigator.js