Add first implemenation for SU password sync

chrome/browser/chromeos/login/supervised_user_manager.h

Index: chrome/browser/chromeos/login/supervised_user_manager.h
diff --git a/chrome/browser/chromeos/login/supervised_user_manager.h b/chrome/browser/chromeos/login/supervised_user_manager.h
index 880c989c75bdf458d796a2f4d27e00cd2488f8fb..c19a9308781a70f8210ee964ebc91bc88330d4d9 100644
--- a/chrome/browser/chromeos/login/supervised_user_manager.h
+++ b/chrome/browser/chromeos/login/supervised_user_manager.h
@@ -15,6 +15,12 @@ class PrefRegistrySimple;
 namespace chromeos {
 
 class User;
+class SupervisedUserAuthentication;
+
+extern const char kSchemaVersion[];
+extern const char kPasswordVersion[];

[Nikita (slow), 2013/12/09 16:42:16]

nit: Rename to revision?

[Denis Kuznetsov (DE-MUC), 2013/12/12 19:45:24]

Done.

+extern const char kSalt[];
+extern const char kEncryptedPassword[];
 
 // Base class for SupervisedUserManagerImpl - provides a mechanism for getting
 // and setting specific values for supervised users, as well as additional
@@ -79,6 +85,19 @@ class SupervisedUserManager {
   // Remove locally managed user creation transaction record.
   virtual void CommitCreationTransaction() = 0;
 
+  // Return object that handles specifics of supervised user authentication.
+  virtual SupervisedUserAuthentication* GetSupervisedUserAuthentication() = 0;

[Nikita (slow), 2013/12/09 16:42:16]

nit: I think this may be renamed to GetAuthentication() since in this context it
is quite clear:

SupervisedUserAuthentication* authentication = UserManager::Get()->
    GetSupervisedUserManager()->GetAuthentication();

[Denis Kuznetsov (DE-MUC), 2013/12/12 19:45:24]

Done.

+
+  // 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

[Bernhard Bauer, 2013/12/11 14:46:43]

Nit: newline before this line.

[Denis Kuznetsov (DE-MUC), 2013/12/12 19:45:24]

Done.

+  // Local State.
+  virtual void SetPasswordInformation(
+      const std::string& user_id,
+      const base::DictionaryValue* password_info) = 0;
+
  private:
   DISALLOW_COPY_AND_ASSIGN(SupervisedUserManager);
 };