Convert another batch of extension tests to manifest_version 2

chrome/test/data/extensions/api_test/window_open/panel/test.html

Index: chrome/test/data/extensions/api_test/window_open/panel/test.html
===================================================================
--- chrome/test/data/extensions/api_test/window_open/panel/test.html	(revision 112565)
+++ chrome/test/data/extensions/api_test/window_open/panel/test.html	(working copy)
@@ -1,11 +1,6 @@
-<script>
-chrome.test.runTests([
-  function openPanel() {
-    chrome.windows.create(
-        { 'url': 'about:blank', 'type': 'panel' },
-        chrome.test.callbackPass(function(win) {
-            chrome.test.assertEq('panel', win.type);
-        }));
-  }
-]);
-</script>
+<!--
+ * Copyright (c) 2011 The Chromium Authors. All rights reserved.  Use of this
+ * source code is governed by a BSD-style license that can be found in the
+ * LICENSE file.
+-->
+<script src="test.js"></script>