Add LoginState class to src/chromeos/login

chrome/browser/chromeos/login/user_manager_impl.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_USER_MANAGER_IMPL_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_USER_MANAGER_IMPL_H_
 
 #include <map>
 #include <string>
 
@@ skipping 189 matching lines @@
 
   // Returns true if there is non-committed user creation transaction.
   bool HasFailedLocallyManagedUserCreationTransaction();
 
   // Attempts to clean up data that could be left from failed user creation.
   void RollbackLocallyManagedUserCreationTransaction();
 
   // Lazily creates default user flow.
   UserFlow* GetDefaultUserFlow() const;
 
+  // Update the global LoginState.
+  void UpdateLoginState();
+
   // Interface to the signed settings store.
   CrosSettings* cros_settings_;
 
   // Interface to device-local account definitions and associated policy.
   policy::DeviceLocalAccountPolicyService* device_local_account_policy_service_;
 
   // True if users have been loaded from prefs already.
   bool users_loaded_;
 
   // List of all known users. User instances are owned by |this|. Regular users
@@ skipping 63 matching lines @@
 
   // Specific flows by user e-mail.
   FlowMap specific_flows_;
 
   DISALLOW_COPY_AND_ASSIGN(UserManagerImpl);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USER_MANAGER_IMPL_H_