WizardScreen is merged to BaseScreen.

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 WizardScreen;
+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
@@ skipping 38 matching lines @@
   // just created user without asking the same info once again.
   virtual void OnSetUserNamePassword(const std::string& username,
                                      const std::string& password) = 0;
 
   // Whether usage statistics reporting is enabled on EULA screen.
   virtual void SetUsageStatisticsReporting(bool val) = 0;
   virtual bool GetUsageStatisticsReporting() const = 0;
 
   virtual ErrorScreen* GetErrorScreen() = 0;
   virtual void ShowErrorScreen() = 0;
-  virtual void HideErrorScreen(WizardScreen* parent_screen) = 0;
+  virtual void HideErrorScreen(BaseScreen* parent_screen) = 0;
 
  protected:
   virtual ~ScreenObserver() {}
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_SCREEN_OBSERVER_H_