Add a lock to the managed user settings page and require authentication for unlocking.

chrome/browser/ui/webui/options/managed_user_settings_browsertest.js

+// Copyright (c) 2013 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.
+
+GEN('#include "chrome/browser/ui/webui/options/' +
+    'managed_user_settings_test.h"');
+
+/**
+ * Test fixture for managed user settings WebUI testing.
+ * @constructor
+ * @extends {testing.Test}
+ */
+function ManagedUserSettingsTest() {}
+
+ManagedUserSettingsTest.prototype = {
+  __proto__: testing.Test.prototype,
+
+  /**
+   * Browse to the managed user settings page .
+   */
+  browsePreload: 'chrome://settings-frame/managedUser',
+
+  /** @override */
+  typedefCppFixture: 'ManagedUserSettingsTest',
+
+  /** @inheritDoc */
+  preLoad: function() {
+    this.makeAndRegisterMockHandler(['displayPassphraseDialog']);
+  },
+
+};
+
+// Verify that the settings page is locked when a passphrase is specified.
+TEST_F('ManagedUserSettingsTest', 'PageLocked',
+    function() {
+      // Check that the user is not authenticated when a passphrase is set.
+      ManagedUserSettings.initializeSetPassphraseButton(true);
+      var instance = ManagedUserSettings.getInstance();
+      expectEquals(instance.authenticationState,
+                   options.Authentication.UNAUTHENTICATED);
+      // Now verify that the unlock button can be clicked.
+      var unlockButton =
+          options.ManagedUserSettingsForTesting.getUnlockButton();
+      expectFalse(unlockButton.disabled);
+      this.mockHandler.expects((once())).displayPassphraseDialog(
+          ['options.ManagedUserSettings.isAuthenticated']);
+      unlockButton.click();
+    });
+
+// Verify that the settings page is not locked when no passphrase is specified.
+TEST_F('ManagedUserSettingsTest', 'PageUnlocked',
+    function() {
+      var instance = ManagedUserSettings.getInstance();
+      expectEquals(instance.authenticationState,
+                   options.Authentication.AUTHENTICATED);
+      var unlockButton =
+          options.ManagedUserSettingsForTesting.getUnlockButton();
+      expectTrue(unlockButton.disabled);
+    });