Move a bunch of extension API tests to manifest_version 2.

chrome/test/data/extensions/api_test/alert/test.html

Index: chrome/test/data/extensions/api_test/alert/test.html
===================================================================
--- chrome/test/data/extensions/api_test/alert/test.html	(revision 111763)
+++ chrome/test/data/extensions/api_test/alert/test.html	(working copy)
@@ -1,8 +1,6 @@
-<script>
-// Copyright (c) 2010 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.
-
-// Nothing to do. The test harness will handle the rest.
-chrome.test.runTests([]);
-</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>