Add browser test for new user CrOS login flow

chrome/browser/ui/webui/chromeos/login/signin_screen_handler.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_SIGNIN_SCREEN_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_SIGNIN_SCREEN_HANDLER_H_
 
 #include <set>
 #include <string>
 
@@ skipping 44 matching lines @@
                          const std::string& error_text,
                          const std::string& help_link_text,
                          HelpAppLauncher::HelpTopic help_topic_id) = 0;
   virtual void ShowErrorScreen(LoginDisplay::SigninError error_id) = 0;
   virtual void ShowGaiaPasswordChanged(const std::string& username) = 0;
   virtual void ShowSigninUI(const std::string& email) = 0;
   virtual void ShowPasswordChangedDialog(bool show_password_error) = 0;
   // Show sign-in screen for the given credentials.
   virtual void ShowSigninScreenForCreds(const std::string& username,
                                         const std::string& password) = 0;
+  virtual void SetGaiaOriginForTesting(const std::string& arg) = 0;
  protected:
   virtual ~LoginDisplayWebUIHandler() {}
 };
 
 // An interface for SigninScreenHandler to call WebUILoginDisplay.
 class SigninScreenHandlerDelegate {
  public:
   // Cancels current password changed flow.
   virtual void CancelPasswordChangedFlow() = 0;
 
@@ skipping 167 matching lines @@
   virtual void ShowError(int login_attempts,
                          const std::string& error_text,
                          const std::string& help_link_text,
                          HelpAppLauncher::HelpTopic help_topic_id) OVERRIDE;
   virtual void ShowGaiaPasswordChanged(const std::string& username) OVERRIDE;
   virtual void ShowSigninUI(const std::string& email) OVERRIDE;
   virtual void ShowPasswordChangedDialog(bool show_password_error) OVERRIDE;
   virtual void ShowErrorScreen(LoginDisplay::SigninError error_id) OVERRIDE;
   virtual void ShowSigninScreenForCreds(const std::string& username,
                                         const std::string& password) OVERRIDE;
+  virtual void SetGaiaOriginForTesting(const std::string& arg) OVERRIDE;
 
   // BrowsingDataRemover::Observer overrides.
   virtual void OnBrowsingDataRemoverDone() OVERRIDE;
 
   // SystemKeyEventListener::CapsLockObserver overrides.
   virtual void OnCapsLockChange(bool enabled) OVERRIDE;
 
   // content::NotificationObserver implementation:
   virtual void Observe(int type,
                        const content::NotificationSource& source,
@@ skipping 166 matching lines @@
   base::CancelableClosure update_state_closure_;
   base::CancelableClosure connecting_closure_;
 
   content::NotificationRegistrar registrar_;
 
   // Whether there is an auth UI pending. This flag is set on receiving
   // NOTIFICATION_AUTH_NEEDED and reset on either NOTIFICATION_AUTH_SUPPLIED or
   // NOTIFICATION_AUTH_CANCELLED.
   bool has_pending_auth_ui_;
 
+  // Testing helper, specifies new value for gaia url.
+  std::string gaia_origin_for_test_;
+
   DISALLOW_COPY_AND_ASSIGN(SigninScreenHandler);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_SIGNIN_SCREEN_HANDLER_H_