arc: Provide API to control Play Store state from autotests

chrome/test/data/extensions/api_test/autotest_private/test.js

 // Copyright (c) 2012 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.
 
 chrome.test.runTests([
   // logout/restart/shutdown don't do anything as we don't want to kill the
   // browser with these tests.
   function logout() {
     chrome.autotestPrivate.logout();
     chrome.test.succeed();
@@ skipping 90 matching lines @@
     chrome.autotestPrivate.setMouseSensitivity(3);
     chrome.test.succeed();
   },
   function setPrimaryButtonRight() {
     chrome.autotestPrivate.setPrimaryButtonRight(false);
     chrome.test.succeed();
   },
   function getVisibleNotifications() {
     chrome.autotestPrivate.getVisibleNotifications(function(){});
     chrome.test.succeed();
+  },
+  function getPlayStoreState() {
+    chrome.autotestPrivate.getPlayStoreState(function(state) {
+      // By default ARC is not available. Field allowed must be set to false;
+      // managed and enabled should be underfined.
+      chrome.test.assertFalse(state.allowed);
+      chrome.test.assertEq(state.enabled, undefined);

[Devlin, 2017/04/14 14:34:24]

nit: assertEq(expected, actual), so this should be assertEq(undefined,
state.enabled)

[khmel, 2017/04/14 15:39:19]

Done.

+      chrome.test.assertEq(state.managed, undefined);

[Devlin, 2017/04/14 14:34:25]

ditto

[khmel, 2017/04/14 15:39:19]

Done.

+      chrome.test.succeed();
+    });
+  },
+  function setPlayStoreEnabled() {
+    chrome.autotestPrivate.setPlayStoreEnabled(false, function() {
+      // By default ARC is not available.
+      chrome.test.assertTrue(chrome.runtime.lastError != undefined);
+      chrome.test.succeed();
+    });
   }
 ]);