chrome: Cleanup class/struct forward declarations

chrome/browser/chromeos/login/wizard_controller.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_WIZARD_CONTROLLER_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_WIZARD_CONTROLLER_H_
 
 #include <map>
 #include <memory>
 #include <string>
@@ skipping 11 matching lines @@
 #include "chrome/browser/chromeos/login/screen_manager.h"
 #include "chrome/browser/chromeos/login/screens/base_screen_delegate.h"
 #include "chrome/browser/chromeos/login/screens/controller_pairing_screen.h"
 #include "chrome/browser/chromeos/login/screens/eula_screen.h"
 #include "chrome/browser/chromeos/login/screens/hid_detection_screen.h"
 #include "chrome/browser/chromeos/login/screens/host_pairing_screen.h"
 #include "chrome/browser/chromeos/login/screens/network_screen.h"
 #include "chrome/browser/chromeos/login/screens/reset_screen.h"
 #include "chrome/browser/chromeos/policy/enrollment_config.h"
 
-class PrefRegistrySimple;
 class PrefService;
 
 namespace pairing_chromeos {
 class ControllerPairingController;
 class HostPairingController;
 class SharkConnectionListener;
 }
 
 namespace chromeos {
 
-class AutoEnrollmentCheckScreen;
-class EnrollmentScreen;
 class ErrorScreen;
 struct Geoposition;
 class LoginDisplayHost;
 class LoginScreenContext;
 class OobeUI;
 class SimpleGeolocationProvider;
-class SupervisedUserCreationScreen;
 class TimeZoneProvider;
 struct TimeZoneResponseData;
-class UpdateScreen;
-class UserImageScreen;
 
 // Class that manages control flow between wizard screens. Wizard controller
 // interacts with screen controllers to move the user between screens.
 class WizardController : public BaseScreenDelegate,
                          public ScreenManager,
                          public EulaScreen::Delegate,
                          public ControllerPairingScreen::Delegate,
                          public HostPairingScreen::Delegate,
                          public NetworkScreen::Delegate,
                          public HIDDetectionScreen::Delegate {
@@ skipping 386 matching lines @@
   BaseScreen* hid_screen_ = nullptr;
 
   base::WeakPtrFactory<WizardController> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WizardController);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_WIZARD_CONTROLLER_H_