Convert another batch of extension tests to manifest_version 2

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

-<script>
-chrome.test.runTests([
-  // Tests that even though window.opener is not set when using
-  // chrome.windows.create directly, the same effect can be achieved by creating
-  // a window, giving it a name, and then targetting that window via
-  // window.open().
-  function checkOpener() {
-    // Make sure that we wait for the load callbacks to fire.
-    var testCompleted = chrome.test.callbackAdded();
-    var testWindowId;
-    
-    window.onSetNameLoaded = function(testWindow) {
-      // It's not technically required for window.opener to be null when using
-      // chrome.windows.create, but that is the current expected behavior (and
-      // the reason why the window.name/open() workaround is necessary).
-      chrome.test.assertTrue(testWindow.opener == null);
-      window.open('check-opener.html', 'target-window');
-    };
-    
-    window.onCheckOpenerLoaded = function(testWindow) {
-      // The opener should now be set...
-      chrome.test.assertTrue(testWindow.opener != null);
-      // ...and the test window should only have one tab (because it was
-      // targetted via the "target-window" name).
-      chrome.tabs.getAllInWindow(
-          testWindowId,
-          chrome.test.callbackPass(function(tabs) {
-            chrome.test.assertEq(1, tabs.length);
-            chrome.test.assertEq(
-                chrome.extension.getURL('check-opener.html'), tabs[0].url);
-            testCompleted();      
-          }));
-    };
-    
-    chrome.windows.create(
-        {'url': 'set-name.html'},
-        chrome.test.callbackPass(function(win) {
-          testWindowId = win.id;
-        }));
-  }
-]);
-</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>