cros: Move BaseScreenDelegate::ExitCodes into separate file, ScreenExitCode.

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 193 matching lines @@
 
   // Actions that should be done right after EULA is accepted,
   // before update check.
   void PerformPostEulaActions();
 
   // Actions that should be done right after update stage is finished.
   void PerformOOBECompletedActions();
 
   // Overridden from BaseScreenDelegate:
   void OnExit(BaseScreen& screen,
-              ExitCodes exit_code,
+              ScreenExitCode exit_code,
               const ::login::ScreenContext* context) override;
   void ShowCurrentScreen() override;
   ErrorScreen* GetErrorScreen() override;
   void ShowErrorScreen() override;
   void HideErrorScreen(BaseScreen* parent_screen) override;
 
   // Overridden from EulaScreen::Delegate:
   void SetUsageStatisticsReporting(bool val) override;
   bool GetUsageStatisticsReporting() const override;
 
@@ skipping 198 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_