rem: gLastValidURL = gURLBar.value; 
add: gLastValidURLStr = gURLBar.value; 
context: function SetPageProxyState(aState){  if (!gProxyButton)    gProxyButton = document.getElementById("page-proxy-button");  gProxyButton.setAttribute("pageproxystate", aState);  if (aState == "valid") {    gLastValidURL = gURLBar.value;    gURLBar.addEventListener("input", UpdatePageProxyState, false);  } else if (aState == "invalid")    gURLBar.removeEventListener("input", UpdatePageProxyState, false);  }
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/8ca82532f650ee98164c6229edf7c1e4e431e12e/navigator.js/buggy/xpfe/browser/resources/content/navigator.js