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diff --git a/docshell/test/chrome/test_bug789773.xul b/docshell/test/chrome/test_bug789773.xul
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+<?xml version="1.0"?>
+<?xml-stylesheet type="text/css" href="chrome://global/skin"?>
+<?xml-stylesheet type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"?>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=789773
+-->
+<window title="Mozilla Bug 789773"
+ xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+ <script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/>
+
+ <!-- test results are displayed in the html:body -->
+ <body xmlns="http://www.w3.org/1999/xhtml">
+ <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=789773"
+ target="_blank">Mozilla Bug 789773</a>
+ </body>
+
+ <!-- test code goes here -->
+ <script type="application/javascript">
+ <![CDATA[
+ const Cc = Components.classes;
+ const Ci = Components.interfaces;
+ const Cr = Components.results;
+ const Cu = Components.utils;
+
+ /* Test for Bug 789773.
+ *
+ * See comment 50 for the situation we're testing against here.
+ *
+ * Note that the failure mode of this test is to hang, and hang the browser on quit.
+ * This is an unfortunate occurance, but that's why we're testing it.
+ */
+ SimpleTest.waitForExplicitFinish();
+
+ var calledListenerForBrowserXUL = false;
+ var testProgressListener = {
+ START_DOC: Ci.nsIWebProgressListener.STATE_START | Ci.nsIWebProgressListener.STATE_IS_DOCUMENT,
+ onStateChange: function(wp, req, stateFlags, status) {
+ if (/browser.xul/.test(req.name)) {
+ wp.DOMWindow; // Force the lazy creation of a DOM window.
+ calledListenerForBrowserXUL = true;
+ }
+ if (/mozilla.xhtml/.test(req.name) && (stateFlags & Ci.nsIWebProgressListener.STATE_STOP))
+ finishTest();
+ },
+ QueryInterface: function(iid) {
+ if (iid.equals(Ci.nsISupportsWeakReference) ||
+ iid.equals(Ci.nsIWebProgressListener))
+ return this;
+ throw Cr.NS_ERROR_NO_INTERFACE;
+ }
+ }
+
+ // Add our progress listener
+ var webProgress = Cc['@mozilla.org/docloaderservice;1'].getService(Ci.nsIWebProgress);
+ webProgress.addProgressListener(testProgressListener, Ci.nsIWebProgress.NOTIFY_STATE_REQUEST);
+
+ // Open the window.
+ var popup = window.open("about:mozilla", "_blank", "width=640,height=400");
+
+ // Wait for the window to load.
+ function finishTest() {
+ webProgress.removeProgressListener(testProgressListener);
+ ok(true, "Loaded the popup window without spinning forever in the event loop!");
+ ok(calledListenerForBrowserXUL, "Should have called the progress listener for browser.xul");
+ popup.close();
+ SimpleTest.finish();
+ }
+
+ ]]>
+ </script>
+</window>