Add Active Directory login UI tests

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

 // 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.
 
 #ifndef CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_ENROLLMENT_SCREEN_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_ENROLLMENT_SCREEN_HANDLER_H_
 
 #include <memory>
 #include <string>
 
 #include "base/macros.h"
 #include "chrome/browser/chromeos/login/enrollment/enrollment_screen_view.h"
 #include "chrome/browser/chromeos/login/enrollment/enterprise_enrollment_helper.h"
 #include "chrome/browser/chromeos/login/screens/error_screen.h"
 #include "chrome/browser/chromeos/policy/enrollment_config.h"
 #include "chrome/browser/ui/webui/chromeos/login/base_screen_handler.h"
 #include "chrome/browser/ui/webui/chromeos/login/network_state_informer.h"
 #include "net/base/net_errors.h"
 #include "third_party/cros_system_api/dbus/service_constants.h"
 
 namespace chromeos {
 
 class ErrorScreensHistogramHelper;
 class HelpAppLauncher;
 
+// Possible error states of the Active Directory screen. Must be in the same
+// order as ACTIVE_DIRECTORY_ERROR_STATE enum values.
+enum class ActiveDirectoryErrorState {
+  NONE = 0,
+  MACHINE_NAME_INVALID = 1,
+  MACHINE_NAME_TOO_LONG = 2,
+  BAD_USERNAME = 3,
+  BAD_PASSWORD = 4,
+};
+
 // WebUIMessageHandler implementation which handles events occurring on the
 // page, such as the user pressing the signin button.
 class EnrollmentScreenHandler
     : public BaseScreenHandler,
       public EnrollmentScreenView,
       public NetworkStateInformer::NetworkStateInformerObserver {
  public:
   EnrollmentScreenHandler(
       const scoped_refptr<NetworkStateInformer>& network_state_informer,
       ErrorScreen* error_screen);
@@ skipping 109 matching lines @@
   scoped_refptr<HelpAppLauncher> help_app_;
 
   base::WeakPtrFactory<EnrollmentScreenHandler> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(EnrollmentScreenHandler);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_ENROLLMENT_SCREEN_HANDLER_H_