ChromeOS: Add known_user Get/Set GaiaIdMigrationStatus.

BUG=462823
TEST=none

Review URL: https://codereview.chromium.org/1582663002

Cr-Commit-Position: refs/heads/master@{#369452}

2 files changed, 31 insertions, 0 deletions

diff --git a/components/user_manager/known_user.cc b/components/user_manager/known_user.cc
index b9adce4..18c1fac 100644
--- a/components/user_manager/known_user.cc
+++ b/components/user_manager/known_user.cc
@@ -42,6 +42,9 @@ const char kGAPSCookie[] = "gaps_cookie";
 // Key of the reason for re-auth.
 const char kReauthReasonKey[] = "reauth_reason";
 
+// Key for the GaiaId migration status.
+const char kGaiaIdMigration[] = "gaia_id_migration";
+
 PrefService* GetLocalState() {
   UserManager* user_manager = UserManager::Get();
   if (user_manager)
@@ -253,6 +256,25 @@ AccountId GetAccountId(const std::string& user_email,
               : AccountId::FromUserEmailGaiaId(user_email, gaia_id));
 }
 
+bool GetGaiaIdMigrationStatus(const AccountId& account_id,
+                              const std::string& subsystem) {
+  bool migrated = false;
+
+  if (GetBooleanPref(account_id,
+                     std::string(kGaiaIdMigration) + "." + subsystem,
+                     &migrated)) {
+    return migrated;
+  }
+
+  return false;
+}
+
+void SetGaiaIdMigrationStatusDone(const AccountId& account_id,
+                                  const std::string& subsystem) {
+  SetBooleanPref(account_id, std::string(kGaiaIdMigration) + "." + subsystem,
+                 true);
+}
+
 void UpdateGaiaID(const AccountId& account_id, const std::string& gaia_id) {
   SetStringPref(account_id, kGAIAIdKey, gaia_id);
 }
diff --git a/components/user_manager/known_user.h b/components/user_manager/known_user.h
index 03528dc..aa02b2f 100644
--- a/components/user_manager/known_user.h
+++ b/components/user_manager/known_user.h
@@ -74,6 +74,15 @@ void USER_MANAGER_EXPORT SetIntegerPref(const AccountId& account_id,
 AccountId USER_MANAGER_EXPORT GetAccountId(const std::string& user_email,
                                            const std::string& gaia_id);
 
+// Returns true if |subsystem| data was migrated to GaiaId for the |account_id|.
+bool USER_MANAGER_EXPORT GetGaiaIdMigrationStatus(const AccountId& account_id,
+                                                  const std::string& subsystem);
+
+// Marks |subsystem| migrated to GaiaId for the |account_id|.
+void USER_MANAGER_EXPORT
+SetGaiaIdMigrationStatusDone(const AccountId& account_id,
+                             const std::string& subsystem);
+
 // Updates |gaia_id| for user with |account_id|.
 // TODO(alemate): Update this once AccountId contains GAIA ID
 // (crbug.com/548926).