Implement a basic UI flow for cryptohome encryption migration.

chrome/browser/chromeos/login/existing_user_controller.cc

 // 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.
 
 #include "chrome/browser/chromeos/login/existing_user_controller.h"
 
 #include <memory>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 12 matching lines @@
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/chromeos/app_mode/kiosk_app_launch_error.h"
 #include "chrome/browser/chromeos/boot_times_recorder.h"
 #include "chrome/browser/chromeos/customization/customization_document.h"
 #include "chrome/browser/chromeos/login/arc_kiosk_controller.h"
 #include "chrome/browser/chromeos/login/auth/chrome_login_performer.h"
 #include "chrome/browser/chromeos/login/easy_unlock/bootstrap_user_context_initializer.h"
 #include "chrome/browser/chromeos/login/easy_unlock/bootstrap_user_flow.h"
 #include "chrome/browser/chromeos/login/enterprise_user_session_metrics.h"
 #include "chrome/browser/chromeos/login/helper.h"
+#include "chrome/browser/chromeos/login/screens/encryption_migration_screen.h"
 #include "chrome/browser/chromeos/login/session/user_session_manager.h"
 #include "chrome/browser/chromeos/login/signin/oauth2_token_initializer.h"
 #include "chrome/browser/chromeos/login/signin_specifics.h"
 #include "chrome/browser/chromeos/login/startup_utils.h"
 #include "chrome/browser/chromeos/login/ui/login_display_host.h"
 #include "chrome/browser/chromeos/login/ui/user_adding_screen.h"
 #include "chrome/browser/chromeos/login/user_flow.h"
 #include "chrome/browser/chromeos/login/users/chrome_user_manager.h"
 #include "chrome/browser/chromeos/login/wizard_controller.h"
 #include "chrome/browser/chromeos/policy/browser_policy_connector_chromeos.h"
@@ skipping 547 matching lines @@
 }
 
 void ExistingUserController::ShowKioskEnableScreen() {
   host_->StartWizard(OobeScreen::SCREEN_KIOSK_ENABLE);
 }
 
 void ExistingUserController::ShowKioskAutolaunchScreen() {
   host_->StartWizard(OobeScreen::SCREEN_KIOSK_AUTOLAUNCH);
 }
 
-void ExistingUserController::ShowEncryptionMigrationScreen() {
+void ExistingUserController::ShowEncryptionMigrationScreen(
+    const UserContext& user_context) {
   host_->StartWizard(OobeScreen::SCREEN_ENCRYPTION_MIGRATION);
+
+  EncryptionMigrationScreen* migration_screen =
+      static_cast<EncryptionMigrationScreen*>(
+          host_->GetWizardController()->current_screen());
+  DCHECK(migration_screen);
+  migration_screen->SetUserContext(user_context);
 }
 
 void ExistingUserController::ShowTPMError() {
   login_display_->SetUIEnabled(false);
   login_display_->ShowErrorScreen(LoginDisplay::TPM_ERROR);
 }
 
 void ExistingUserController::ShowPasswordChangedDialog() {
   RecordPasswordChangeFlow(LOGIN_PASSWORD_CHANGE_FLOW_PASSWORD_CHANGED);
 
@@ skipping 210 matching lines @@
           last_login_attempt_account_id_,
           base::Bind(&ExistingUserController::OnTokenHandleChecked,
                      weak_factory_.GetWeakPtr()));
       return;
     }
   }
 
   ShowPasswordChangedDialog();
 }
 
-void ExistingUserController::OnOldEncryptionDetected() {
-  ShowEncryptionMigrationScreen();
+void ExistingUserController::OnOldEncryptionDetected(
+    const UserContext& user_context) {
+  ShowEncryptionMigrationScreen(user_context);
 }
 
 void ExistingUserController::WhiteListCheckFailed(const std::string& email) {
   PerformLoginFinishedActions(true /* start auto login timer */);
 
   login_display_->ShowWhitelistCheckFailedError();
 
   if (auth_status_consumer_) {
     auth_status_consumer_->OnAuthFailure(
         AuthFailure(AuthFailure::WHITELIST_CHECK_FAILED));
@@ skipping 548 matching lines @@
   login_display_->ShowUnrecoverableCrypthomeErrorDialog();
 }
 
 void ExistingUserController::ClearRecordedNames() {
   display_email_.clear();
   display_name_.clear();
   given_name_.clear();
 }
 
 }  // namespace chromeos