Add account_type into AccountId

chrome/browser/chromeos/login/session/user_session_manager.cc

Index: chrome/browser/chromeos/login/session/user_session_manager.cc
diff --git a/chrome/browser/chromeos/login/session/user_session_manager.cc b/chrome/browser/chromeos/login/session/user_session_manager.cc
index 01e22a1e8cb597de7d63aae9984aa71d7ffc4014..aaf2c947ed8ba3f707d5e33ddecabb6eb7df3c18 100644
--- a/chrome/browser/chromeos/login/session/user_session_manager.cc
+++ b/chrome/browser/chromeos/login/session/user_session_manager.cc
@@ -900,6 +900,7 @@ void UserSessionManager::StoreUserContextDataBeforeProfileIsCreated() {
   if (!user_context_.GetGaiaID().empty()) {
     user_manager::known_user::UpdateGaiaID(user_context_.GetAccountId(),
                                            user_context_.GetGaiaID());
+    user_manager::known_user::UpdateAccountType(user_context_.GetAccountId());

[Andrew T Wilson (Slow), 2016/11/29 11:05:36]

Why are you passing the account ID here as the account type? This is the problem
with defining account_type as a string - it's just too easy to pass in a random
string to these APIs.

[Roman Sorokin (ftl), 2016/12/02 11:13:10]

GetAccountId returns AccountId class. Actually that call means
UpdateAccountType(user_context_.GetAccountId(),
user_context_.GetAccountId().GetAccountType()).

   }
 }