ScreenObserver is renamed to BaseScreenDelegate.

chrome/browser/chromeos/login/screens/screen_observer.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_CHROMEOS_LOGIN_SCREENS_SCREEN_OBSERVER_H_
-#define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_SCREEN_OBSERVER_H_
-
-#include <string>
-
-namespace chromeos {
-
-class ErrorScreen;
-class BaseScreen;
-
-// Interface that handles notifications received from any of login wizard
-// screens.
-class ScreenObserver {
- public:
-  // Each login screen or a view shown within login wizard view is itself a
-  // state. Upon exit each view returns one of the results by calling OnExit()
-  // method. Depending on the result and the current view or state login wizard
-  // decides what is the next view to show. There must be an exit code for each
-  // way to exit the screen for each screen. (Numeric ids are provided to
-  // facilitate interpretation of log files only, they are subject to change
-  // without notice.)
-  enum ExitCodes {
-    // "Continue" was pressed on network screen and network is online.
-    NETWORK_CONNECTED = 0,
-    HID_DETECTION_COMPLETED = 1,
-    // Connection failed while trying to load a WebPageScreen.
-    CONNECTION_FAILED = 2,
-    UPDATE_INSTALLED = 3,
-    UPDATE_NOUPDATE = 4,
-    UPDATE_ERROR_CHECKING_FOR_UPDATE = 5,
-    UPDATE_ERROR_UPDATING = 6,
-    USER_IMAGE_SELECTED = 7,
-    EULA_ACCEPTED = 8,
-    EULA_BACK = 9,
-    ENTERPRISE_AUTO_ENROLLMENT_CHECK_COMPLETED = 10,
-    ENTERPRISE_ENROLLMENT_COMPLETED = 11,
-    ENTERPRISE_AUTO_MAGIC_ENROLLMENT_COMPLETED = 12,
-    ENTERPRISE_ENROLLMENT_BACK = 13,
-    RESET_CANCELED = 14,
-    KIOSK_AUTOLAUNCH_CANCELED = 15,
-    KIOSK_AUTOLAUNCH_CONFIRMED = 16,
-    KIOSK_ENABLE_COMPLETED = 17,
-    TERMS_OF_SERVICE_DECLINED = 18,
-    TERMS_OF_SERVICE_ACCEPTED = 19,
-    WRONG_HWID_WARNING_SKIPPED = 20,
-    CONTROLLER_PAIRING_FINISHED = 21,
-    HOST_PAIRING_FINISHED = 22,
-    DEVICE_NOT_DISABLED = 23,
-    EXIT_CODES_COUNT  // not a real code, must be the last
-  };
-
-  // Method called by a screen when user's done with it.
-  virtual void OnExit(ExitCodes exit_code) = 0;
-
-  // Forces current screen showing.
-  virtual void ShowCurrentScreen() = 0;
-
-  virtual ErrorScreen* GetErrorScreen() = 0;
-  virtual void ShowErrorScreen() = 0;
-  virtual void HideErrorScreen(BaseScreen* parent_screen) = 0;
-
- protected:
-  virtual ~ScreenObserver() {}
-};
-
-}  // namespace chromeos
-
-#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_SCREEN_OBSERVER_H_