Add first implemenation for SU password sync

chrome/browser/chromeos/login/supervised_user_manager.h

 // Copyright 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_SUPERVISED_USER_MANAGER_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_SUPERVISED_USER_MANAGER_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/strings/string16.h"
 
 class PrefRegistrySimple;
 
 namespace chromeos {
 
 class User;
+class SupervisedUserAuthentication;
+
+extern const char kSchemaVersion[];
+extern const char kPasswordRevision[];
+extern const char kSalt[];
+extern const char kEncryptedPassword[];
+extern const int kMinPasswordRevision;
 
 // Base class for SupervisedUserManagerImpl - provides a mechanism for getting
 // and setting specific values for supervised users, as well as additional
 // lookup methods that make sense only for supervised users.
 class SupervisedUserManager {
  public:
   // Registers user manager preferences.
   static void RegisterPrefs(PrefRegistrySimple* registry);
 
   SupervisedUserManager() {}
@@ skipping 46 matching lines @@
 
   // Create a record about starting supervised user creation transaction.
   virtual void StartCreationTransaction(const base::string16& display_name) = 0;
 
   // Add user id to supervised user creation transaction record.
   virtual void SetCreationTransactionUserId(const std::string& user_id) = 0;
 
   // Remove locally managed user creation transaction record.
   virtual void CommitCreationTransaction() = 0;
 
+  // Return object that handles specifics of supervised user authentication.
+  virtual SupervisedUserAuthentication* GetAuthentication() = 0;
+
+  // Fill |result| with public password-specific data for |user_id| from Local
+  // State.
+  virtual void GetPasswordInformation(const std::string& user_id,
+                                      base::DictionaryValue* result) = 0;
+
+  // Stores public password-specific data from |password_info| for |user_id| in
+  // Local State.
+  virtual void SetPasswordInformation(
+      const std::string& user_id,
+      const base::DictionaryValue* password_info) = 0;
+
  private:
   DISALLOW_COPY_AND_ASSIGN(SupervisedUserManager);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SUPERVISED_USER_MANAGER_H_