Allow sync with 2-factor StrongAuth accounts in ChromeOS.

chrome/browser/browser_main.cc

 // Copyright (c) 2010 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/browser_main.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 874 matching lines @@
   explicit StubLogin(std::string username, std::string password) {
     authenticator_ = chromeos::LoginUtils::Get()->CreateAuthenticator(this);
     authenticator_.get()->AuthenticateToLogin(
         g_browser_process->profile_manager()->GetDefaultProfile(),
         username,
         password,
         std::string(),
         std::string());
   }
 
+  void SetLoginFailure(const chromeos::LoginFailure& error) {}
+
   void OnLoginFailure(const chromeos::LoginFailure& error) {
     LOG(ERROR) << "Login Failure: " << error.GetErrorString();
     delete this;
   }
 
   void OnLoginSuccess(const std::string& username,
                       const std::string& password,
                       const GaiaAuthConsumer::ClientLoginResult& credentials,
                       bool pending_requests) {
     chromeos::LoginUtils::Get()->CompleteLogin(username, password, credentials);
@@ skipping 758 matching lines @@
   metrics->Stop();
 
   // browser_shutdown takes care of deleting browser_process, so we need to
   // release it.
   ignore_result(browser_process.release());
   browser_shutdown::Shutdown();
 
   TRACE_EVENT_END("BrowserMain", 0, 0);
   return result_code;
 }