Backing out 655f2ee419a7 to fix orange

browser/components/sessionstore/test/browser/browser_514751.js

@@ -52,6 +52,8 @@ function test() {
 
   let ss = Cc["@mozilla.org/browser/sessionstore;1"].
            getService(Ci.nsISessionStore);
+  let ww = Cc["@mozilla.org/embedcomp/window-watcher;1"].
+           getService(Ci.nsIWindowWatcher);
 
   waitForExplicitFinish();
 
@@ -66,8 +68,14 @@ function test() {
     }]
   };
 
-  var theWin = openDialog(location, "", "chrome,all,dialog=no");
+  let windowObserver = {
+    observe: function(aSubject, aTopic, aData) {
+      let theWin = aSubject.QueryInterface(Ci.nsIDOMWindow);
+
+      switch(aTopic) {
+        case "domwindowopened":
           theWin.addEventListener("load", function () {
+            theWin.removeEventListener("load", arguments.callee, false);
             executeSoon(function() {
               var gotError = false;
               try {
@@ -77,10 +85,27 @@ function test() {
                   gotError = true;
               }
               ok(!gotError, "Didn't get a malformed URI error.");
+              executeSoon(function() {
                 theWin.close();
-      is(browserWindowsCount(), 1, "Only one browser window should be open eventually");
+              });
-      finish();
             });
           }, false);
+          break;
+
+        case "domwindowclosed":
+          ww.unregisterNotification(this);
+          is(browserWindowsCount(), 1, "Only one browser window should be open eventually");
+          finish();
+          break;
+      }
+    }
+  }
+  ww.registerNotification(windowObserver);
+  ww.openWindow(null,
+                location,
+                "_blank",
+                "chrome,all,dialog=no",
+                null);
+
 }