[cros] Cleanup login auth stack: remove ClientLogin legacy code

chrome/browser/chromeos/chrome_browser_main_chromeos.cc

 // Copyright (c) 2013 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/chrome_browser_main_chromeos.h"
 
 #include <string>
 #include <vector>
 
 #include "ash/ash_switches.h"
@@ skipping 142 matching lines @@
                   public LoginUtils::Delegate {
  public:
   StubLogin(std::string username, std::string password)
       : pending_requests_(false),
         profile_prepared_(false) {
     authenticator_ = LoginUtils::Get()->CreateAuthenticator(this);
     authenticator_.get()->AuthenticateToLogin(
         g_browser_process->profile_manager()->GetDefaultProfile(),
         UserContext(username,
                     password,
-                    std::string()),  // auth_code
-        std::string(),   // login_token
-        std::string());  // login_captcha
+                    std::string()));  // auth_code
   }
 
   virtual ~StubLogin() {
     LoginUtils::Get()->DelegateDeleted(this);
   }
 
   virtual void OnLoginFailure(const LoginFailure& error) OVERRIDE {
     LOG(ERROR) << "Login Failure: " << error.GetErrorString();
     delete this;
   }
@@ skipping 671 matching lines @@
   ChromeBrowserMainPartsLinux::PostDestroyThreads();
   // Destroy DeviceSettingsService after g_browser_process.
   DeviceSettingsService::Shutdown();
 }
 
 void ChromeBrowserMainPartsChromeos::SetupPlatformFieldTrials() {
   default_pinned_apps_field_trial::SetupTrial();
 }
 
 }  //  namespace chromeos