Add browser test for new user CrOS login flow

chrome/browser/chromeos/login/webui_login_display.cc

 // Copyright (c) 2012 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/webui_login_display.h"
 
 #include "ash/wm/user_activity_detector.h"
 #include "chrome/browser/chromeos/accessibility/accessibility_util.h"
 #include "chrome/browser/chromeos/input_method/input_method_configuration.h"
 #include "chrome/browser/chromeos/input_method/input_method_manager.h"
@@ skipping 293 matching lines @@
   webui_handler_ = webui_handler;
 }
 
 void WebUILoginDisplay::ShowSigninScreenForCreds(
     const std::string& username,
     const std::string& password) {
   if (webui_handler_)
     webui_handler_->ShowSigninScreenForCreds(username, password);
 }
 
+void WebUILoginDisplay::SetGaiaOriginForTesting(const std::string& arg) {
+  if (webui_handler_)
+    webui_handler_->SetGaiaOriginForTesting(arg);
+}
+
 const UserList& WebUILoginDisplay::GetUsers() const {
   return users_;
 }
 
 bool WebUILoginDisplay::IsShowGuest() const {
   return show_guest_;
 }
 
 bool WebUILoginDisplay::IsShowUsers() const {
   return show_users_;
@@ skipping 26 matching lines @@
       base::TimeDelta::FromSeconds(kPasswordClearTimeoutSec), this,
       &WebUILoginDisplay::OnPasswordClearTimerExpired);
 }
 
 void WebUILoginDisplay::OnPasswordClearTimerExpired() {
   if (webui_handler_)
     webui_handler_->ClearUserPodPassword();
 }
 
 }  // namespace chromeos