Replace c/b/nss_context by a KeyedService.

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/settings/cros_settings.h"
+#include "chromeos/login/login_state.h"
 #include "components/user_manager/user_manager.h"
 #include "content/public/browser/browser_thread.h"
 
 using content::BrowserThread;
 
 namespace chromeos {
 
 ChromeCryptohomeAuthenticator::ChromeCryptohomeAuthenticator(
     AuthStatusConsumer* consumer)
     : CryptohomeAuthenticator(base::ThreadTaskRunnerHandle::Get(), consumer) {
@@ skipping 20 matching lines @@
   if (LoginState::IsInitialized()) {
     LoginState::Get()->SetLoggedInState(LoginState::LOGGED_IN_SAFE_MODE,
                                         LoginState::LOGGED_IN_USER_NONE);
   }
 
   OwnerSettingsService::IsOwnerForSafeModeAsync(context.GetUserIDHash(),
                                                 callback);
 }
 
 }  // namespace chromeos