Check the available storage size before starting 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 612 matching lines @@
 
   EncryptionMigrationScreen* migration_screen =
       static_cast<EncryptionMigrationScreen*>(
           host_->GetWizardController()->current_screen());
   DCHECK(migration_screen);
   migration_screen->SetUserContext(user_context);
   migration_screen->SetShouldResume(has_incomplete_migration);
   migration_screen->SetContinueLoginCallback(base::BindOnce(
       &ExistingUserController::ContinuePerformLogin, weak_factory_.GetWeakPtr(),
       login_performer_->auth_mode()));
+  migration_screen->SetupInitialView();
 }
 
 void ExistingUserController::ShowTPMError() {
   login_display_->SetUIEnabled(false);
   login_display_->ShowErrorScreen(LoginDisplay::TPM_ERROR);
 }
 
 void ExistingUserController::ShowPasswordChangedDialog() {
   RecordPasswordChangeFlow(LOGIN_PASSWORD_CHANGE_FLOW_PASSWORD_CHANGED);
 
@@ skipping 791 matching lines @@
   login_display_->ShowUnrecoverableCrypthomeErrorDialog();
 }
 
 void ExistingUserController::ClearRecordedNames() {
   display_email_.clear();
   display_name_.clear();
   given_name_.clear();
 }
 
 }  // namespace chromeos