AUTH_MODE_EXTENSION  356 chrome/browser/chromeos/login/existing_user_controller.cc         user_context, LoginPerformer::AUTH_MODE_EXTENSION);
AUTH_MODE_EXTENSION  363 chrome/browser/chromeos/login/existing_user_controller.cc     PerformLogin(user_context, LoginPerformer::AUTH_MODE_EXTENSION);
AUTH_MODE_EXTENSION  767 chrome/browser/chromeos/login/existing_user_controller.cc       login_performer_->auth_mode() == LoginPerformer::AUTH_MODE_EXTENSION &&
AUTH_MODE_EXTENSION  173 chrome/browser/chromeos/login/login_performer.cc       case AUTH_MODE_EXTENSION: {