Add ARC++ kiosk menu items and ability to start kiosk session.

chrome/browser/chromeos/login/users/mock_user_manager.h

Index: chrome/browser/chromeos/login/users/mock_user_manager.h
diff --git a/chrome/browser/chromeos/login/users/mock_user_manager.h b/chrome/browser/chromeos/login/users/mock_user_manager.h
index a600ea0ae7c26eb05adcd864e758614838ac8001..edceae1d6187e1a12e944ff612325029388f5bb1 100644
--- a/chrome/browser/chromeos/login/users/mock_user_manager.h
+++ b/chrome/browser/chromeos/login/users/mock_user_manager.h
@@ -108,6 +108,7 @@ class MockUserManager : public ChromeUserManager {
                      bool(const AccountId&));
   MOCK_METHOD0(DemoAccountLoggedIn, void(void));
   MOCK_METHOD1(KioskAppLoggedIn, void(user_manager::User*));
+  MOCK_METHOD1(ArcKioskAppLoggedIn, void(user_manager::User*));
   MOCK_METHOD1(PublicAccountUserLoggedIn, void(user_manager::User*));
   MOCK_METHOD1(SupervisedUserLoggedIn, void(const AccountId&));
   MOCK_METHOD1(OnUserRemoved, void(const AccountId&));