Move another block of extension tests to manifest_version 2.

chrome/test/data/extensions/api_test/incognito/dont_create_profile/background.html

Index: chrome/test/data/extensions/api_test/incognito/dont_create_profile/background.html
===================================================================
--- chrome/test/data/extensions/api_test/incognito/dont_create_profile/background.html	(revision 112170)
+++ chrome/test/data/extensions/api_test/incognito/dont_create_profile/background.html	(working copy)
@@ -1,14 +1,6 @@
-<script>
-chrome.test.runTests([
-  function enumerateTabs() {
-    chrome.windows.getAll({"populate": true}, function (windows) {
-      chrome.test.succeed();
-    });
-  },
-  function getAllCookieStores() {
-    chrome.cookies.getAllCookieStores(function (stores) {
-      chrome.test.succeed();
-    });
-  }
-]);
-</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="background.js"></script>