You should be able to deselect the only user pod in the desktop user manager.

chrome/browser/chromeos/login/kiosk_browsertest.cc

 // 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.
 
 #include "apps/app_window.h"
 #include "apps/app_window_registry.h"
 #include "apps/ui/native_app_window.h"
 #include "ash/desktop_background/desktop_background_controller.h"
 #include "ash/desktop_background/desktop_background_controller_observer.h"
 #include "ash/shell.h"
@@ skipping 459 matching lines @@
     static_cast<LoginDisplayHostImpl*>(LoginDisplayHostImpl::default_host())
         ->GetOobeUI()->ShowOobeUI(false);
 
     // Configure network should bring up lock screen for owner.
     OobeScreenWaiter lock_screen_waiter(OobeDisplay::SCREEN_ACCOUNT_PICKER);
     static_cast<AppLaunchSplashScreenActor::Delegate*>(GetAppLaunchController())
         ->OnConfigureNetwork();
     lock_screen_waiter.Wait();
 
     // There should be only one owner pod on this screen.
-    JsExpect("$('pod-row').isSinglePod");
+    JsExpect("$('pod-row').alwaysFocusSinglePod");
 
     // A network error screen should be shown after authenticating.
     OobeScreenWaiter error_screen_waiter(OobeDisplay::SCREEN_ERROR_MESSAGE);
     static_cast<AppLaunchSigninScreen::Delegate*>(GetAppLaunchController())
         ->OnOwnerSigninSuccess();
     error_screen_waiter.Wait();
 
     ASSERT_TRUE(GetAppLaunchController()->showing_network_dialog());
 
     SimulateNetworkOnline();
@@ skipping 695 matching lines @@
   content::WindowedNotificationObserver(
       chrome::NOTIFICATION_KIOSK_AUTOLAUNCH_WARNING_VISIBLE,
       content::NotificationService::AllSources()).Wait();
 
   // Wait for the wallpaper to load.
   WaitForWallpaper();
   EXPECT_TRUE(wallpaper_loaded());
 }
 
 }  // namespace chromeos