Move another block of extension tests to manifest_version 2

chrome/test/data/extensions/api_test/preference/session_only_incognito/test.html

-<script>
-// Content settings API test
-// Run with browser_tests --gtest_filter=ExtensionApiTest.PreferenceSessionOnlyIncognito
-
-var pw = chrome.experimental.privacy.websites;
-function expect(expected, message) {
-  return chrome.test.callbackPass(function(value) {
-    chrome.test.assertNoLastError();
-    chrome.test.assertEq(expected, value, message);
-  });
-}
-chrome.test.runTests([
-  function getRegular() {
-    pw.thirdPartyCookiesAllowed.get(
-        {},
-        expect({ 'value': true,
-                 'levelOfControl': "controllable_by_this_extension" },
-               "third-party cookies should not be blocked"));
-  },
-  function getIncognito() {
-    pw.thirdPartyCookiesAllowed.get(
-        { 'incognito': true },
-        expect({ 'value': true,
-                 'incognitoSpecific': false,
-                 'levelOfControl': "controllable_by_this_extension" },
-               "third-party cookies should not be blocked in incognito mode"));
-  },
-  function set() {
-    pw.thirdPartyCookiesAllowed.set(
-        { 'scope': 'incognito_persistent', 'value': false },
-        chrome.test.callbackPass());
-  },
-  function getRegular2() {
-    pw.thirdPartyCookiesAllowed.get(
-        {},
-        expect({ 'value': true,
-                 'levelOfControl': "controllable_by_this_extension" },
-               "third-party cookies should not be blocked"));
-  },
-  function getIncognito2() {
-    pw.thirdPartyCookiesAllowed.get(
-        { 'incognito': true },
-        expect({ 'value': false,
-                 'incognitoSpecific': true,
-                 'levelOfControl': "controlled_by_this_extension" },
-               "third-party cookies should be blocked in incognito mode"));
-  },
-  // We cannot set session_only_persistent preferences if there is no incognito
-  // session.
-  function set2() {
-    pw.thirdPartyCookiesAllowed.set(
-        { 'scope': 'incognito_session_only', 'value': true },
-        chrome.test.callbackFail("You cannot set a preference with scope " +
-                                 "'incognito_session_only' when no incognito " +
-                                 "window is open."));
-  },
-  function openIncognito() {
-    chrome.windows.create({incognito: true}, chrome.test.callbackPass());
-  },
-  // session_only_persistent overrides incognito_persistent.
-  function set3() {
-    pw.thirdPartyCookiesAllowed.set(
-        { 'scope': 'incognito_session_only', 'value': true },
-        chrome.test.callbackPass());
-  },
-  function getRegular3() {
-    pw.thirdPartyCookiesAllowed.get(
-        {},
-        expect({ 'value': true,
-                 'levelOfControl': "controllable_by_this_extension" },
-               "third-party cookies should not be blocked"));
-  },
-  function getIncognito3() {
-    pw.thirdPartyCookiesAllowed.get(
-        { 'incognito': true },
-        expect({ 'value': true,
-                 'incognitoSpecific': true,
-                 'levelOfControl': "controlled_by_this_extension" },
-               "third-party cookies should be blocked in incognito mode"));
-  },
-]);
-</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>