Made session restore block about:flags driven browser restart.

chrome/browser/chromeos/login/oauth2_login_manager.cc

Index: chrome/browser/chromeos/login/oauth2_login_manager.cc
diff --git a/chrome/browser/chromeos/login/oauth2_login_manager.cc b/chrome/browser/chromeos/login/oauth2_login_manager.cc
index 4491b2443aadd968f86a28ffd876ae63e957ced1..6d5b8bf9a9ed1df40e3644aeda45c87f86e34f72 100644
--- a/chrome/browser/chromeos/login/oauth2_login_manager.cc
+++ b/chrome/browser/chromeos/login/oauth2_login_manager.cc
@@ -108,6 +108,9 @@ void OAuth2LoginManager::StoreOAuth2Tokens(
     const GaiaAuthConsumer::ClientOAuthResult& oauth2_tokens) {
   TokenService* token_service = SetupTokenService();
   token_service->UpdateCredentialsWithOAuth2(oauth2_tokens);
+
+  FOR_EACH_OBSERVER(Observer, observer_list_,
+                    OnNewRefreshTokenAvaiable(user_profile_));
 }
 
 void OAuth2LoginManager::LoadAndVerifyOAuth2Tokens() {