Move another block of extension tests to manifest_version 2.

chrome/test/data/extensions/api_test/incognito/popup/popup.js

+// 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.
+
+var pass = chrome.test.callbackPass;
+var assertEq = chrome.test.assertEq;
+var assertTrue = chrome.test.assertTrue;
+
+chrome.test.runTests([
+  function getCurrentWindow() {
+    // With incognito enabled, we should get our current window (which should
+    // be incognito).
+    chrome.windows.getCurrent(pass(function(win) {
+      assertTrue(win.incognito);
+    }));
+  }
+]);