cros: Enable Ext4 migration in ARC kiosk mode.

chrome/browser/chromeos/login/arc_kiosk_controller.cc

 // Copyright 2017 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.
 
 #include "chrome/browser/chromeos/login/arc_kiosk_controller.h"
 
 #include "base/bind.h"
 #include "base/time/time.h"
 #include "base/timer/timer.h"
 #include "chrome/browser/chromeos/app_mode/kiosk_app_launch_error.h"
 #include "chrome/browser/chromeos/login/auth/chrome_login_performer.h"
+#include "chrome/browser/chromeos/login/screens/encryption_migration_screen.h"
 #include "chrome/browser/chromeos/login/ui/login_display_host.h"
 #include "chrome/browser/chromeos/login/ui/webui_login_view.h"
+#include "chrome/browser/chromeos/login/wizard_controller.h"
 #include "chrome/browser/lifetime/application_lifetime.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/webui/chromeos/login/oobe_ui.h"
 #include "chromeos/login/auth/user_context.h"
 #include "components/session_manager/core/session_manager.h"
 #include "components/signin/core/account_id/account_id.h"
 
 namespace chromeos {
 
 // ARC Kiosk splash screen minimum show time.
@@ skipping 68 matching lines @@
   LOG(ERROR) << "Policy load failed. Will now shut down";
   KioskAppLaunchError::Save(KioskAppLaunchError::POLICY_LOAD_FAILED);
   CleanUp();
   chrome::AttemptUserExit();
 }
 
 void ArcKioskController::SetAuthFlowOffline(bool offline) {
   NOTREACHED();
 }
 
+void ArcKioskController::OnOldEncryptionDetected(
+    const UserContext& user_context,
+    bool has_incomplete_migration) {
+  host_->StartWizard(OobeScreen::SCREEN_ENCRYPTION_MIGRATION);
+
+  EncryptionMigrationScreen* migration_screen =
+      static_cast<EncryptionMigrationScreen*>(
+          host_->GetWizardController()->current_screen());
+  DCHECK(migration_screen);
+  migration_screen->SetUserContext(user_context);
+  migration_screen->SetupInitialView();
+}
+
 void ArcKioskController::OnProfilePrepared(Profile* profile,
                                            bool browser_launched) {
   DVLOG(1) << "Profile loaded... Starting app launch.";
   profile_ = profile;
   // This object could be deleted any time after successfully reporting
   // a profile load, so invalidate the delegate now.
   UserSessionManager::GetInstance()->DelegateDeleted(this);
   ArcKioskAppService::Get(profile_)->SetDelegate(this);
   arc_kiosk_splash_screen_view_->UpdateArcKioskState(
       ArcKioskSplashScreenView::ArcKioskState::WAITING_APP_LAUNCH);
@@ skipping 15 matching lines @@
   CloseSplashScreen();
 }
 
 void ArcKioskController::OnCancelArcKioskLaunch() {
   KioskAppLaunchError::Save(KioskAppLaunchError::USER_CANCEL);
   CleanUp();
   chrome::AttemptUserExit();
 }
 
 }  // namespace chromeos