Remove unused user email argument from nss_util.

chrome/browser/chromeos/login/auth/chrome_cryptohome_authenticator.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/chromeos/login/auth/chrome_cryptohome_authenticator.h"
 
 #include "base/thread_task_runner_handle.h"
 #include "chrome/browser/chromeos/ownership/owner_settings_service.h"
 #include "chrome/browser/chromeos/ownership/owner_settings_service_factory.h"
 #include "chrome/browser/chromeos/settings/cros_settings.h"
@@ skipping 26 matching lines @@
     const UserContext& context,
     const IsOwnerCallback& callback) {
   // |IsOwnerForSafeModeAsync| expects logged in state to be
   // LOGGED_IN_SAFE_MODE.
   if (LoginState::IsInitialized()) {
     LoginState::Get()->SetLoggedInState(LoginState::LOGGED_IN_SAFE_MODE,
                                         LoginState::LOGGED_IN_USER_NONE);
   }
 
   OwnerSettingsService::IsOwnerForSafeModeAsync(
-      context.GetUserID(),
       context.GetUserIDHash(),
       OwnerSettingsServiceFactory::GetInstance()->GetOwnerKeyUtil(),
       callback);
 }
 
 }  // namespace chromeos