diff --git a/core/includes/batch.inc b/core/includes/batch.inc
index 569ce58..1242a72 100644
--- a/core/includes/batch.inc
+++ b/core/includes/batch.inc
@@ -355,10 +355,10 @@ function _batch_next_set() {
   if (isset($batch['sets'][$batch['current_set'] + 1])) {
     $batch['current_set']++;
     $current_set = &_batch_current_set();
-    if (isset($current_set['form_submit']) && ($function = $current_set['form_submit']) && function_exists($function)) {
+    if (isset($current_set['form_submit']) && ($function = $current_set['form_submit']) && is_callable($function)) {
       // We use our stored copies of $form and $form_state to account for
       // possible alterations by previous form submit handlers.
-      $function($batch['form_state']['complete_form'], $batch['form_state']);
+      call_user_func_array($function, array($batch['form_state']['complete_form'], &$batch['form_state']));
     }
     return TRUE;
   }
diff --git a/core/modules/user/lib/Drupal/user/AccountSettingsForm.php b/core/modules/user/lib/Drupal/user/AccountSettingsForm.php
index c0fcad0..9b35049 100644
--- a/core/modules/user/lib/Drupal/user/AccountSettingsForm.php
+++ b/core/modules/user/lib/Drupal/user/AccountSettingsForm.php
@@ -134,7 +134,6 @@ public function buildForm(array $form, array &$form_state) {
       '#title' => $this->t('Enable password strength indicator'),
       '#default_value' => $config->get('password_strength'),
     );
-    form_load_include($form_state, 'inc', 'user', 'user.pages');
     $form['registration_cancellation']['user_cancel_method'] = array(
       '#type' => 'radios',
       '#title' => $this->t('When cancelling a user account'),
diff --git a/core/modules/user/lib/Drupal/user/Entity/User.php b/core/modules/user/lib/Drupal/user/Entity/User.php
index 21accca..0a18545 100644
--- a/core/modules/user/lib/Drupal/user/Entity/User.php
+++ b/core/modules/user/lib/Drupal/user/Entity/User.php
@@ -27,6 +27,7 @@
  *     "render" = "Drupal\Core\Entity\EntityRenderController",
  *     "form" = {
  *       "default" = "Drupal\user\ProfileFormController",
+ *       "cancel" = "Drupal\user\Form\UserCancelForm",
  *       "register" = "Drupal\user\RegisterFormController"
  *     },
  *     "translation" = "Drupal\user\ProfileTranslationController"
diff --git a/core/modules/user/lib/Drupal/user/Form/UserCancelForm.php b/core/modules/user/lib/Drupal/user/Form/UserCancelForm.php
new file mode 100644
index 0000000..5b460c9
--- /dev/null
+++ b/core/modules/user/lib/Drupal/user/Form/UserCancelForm.php
@@ -0,0 +1,173 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\user\Form\UserCancelForm.
+ */
+
+namespace Drupal\user\Form;
+
+use Drupal\Core\Config\ConfigFactory;
+use Drupal\Core\Entity\EntityNGConfirmFormBase;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Provides a confirmation form for cancelling user account.
+ */
+class UserCancelForm extends EntityNGConfirmFormBase {
+
+  /**
+   * Available account cancellation methods.
+   *
+   * @var array
+   */
+  protected $cancelMethods;
+
+  /**
+   * The config factory.
+   *
+   * @var \Drupal\Core\Config\ConfigFactory
+   */
+  protected $configFactory;
+
+  /**
+   * The user being cancelled.
+   *
+   * @var \Drupal\user\UserInterface
+   */
+  protected $entity;
+
+  /**
+   * Constructs an EntityFormController object.
+   *
+   * @param \Drupal\Core\Config\ConfigFactory $config_factory
+   *   The config factory.
+   */
+  public function __construct(ConfigFactory $config_factory) {
+    $this->configFactory = $config_factory;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container) {
+    return new static(
+      $container->get('config.factory')
+    );
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getQuestion() {
+    if ($this->entity->id() == $this->currentUser()->id()) {
+      return $this->t('Are you sure you want to cancel your account?');
+    }
+    return $this->t('Are you sure you want to cancel the account %name?', array('%name' => $this->entity->label()));
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getCancelRoute() {
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getDescription() {
+    $description = '';
+    $default_method = $this->configFactory->get('user.settings')->get('cancel_method');
+    if ($this->currentUser()->hasPermission('administer users') || $this->currentUser()->hasPermission('select account cancellation method')) {
+      $description = $this->t('Select the method to cancel the account above.');
+    }
+    // Options supplied via user_cancel_methods() can have a custom
+    // #confirm_description property for the confirmation form description.
+    elseif (isset($this->cancelMethods[$default_method]['#confirm_description'])) {
+      $description = $this->cancelMethods[$default_method]['#confirm_description'];
+    }
+    return $description . ' ' . $this->t('This action cannot be undone.');
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getConfirmText() {
+    return $this->t('Cancel account');
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildForm(array $form, array &$form_state) {
+    $user = $this->currentUser();
+    $this->cancelMethods = user_cancel_methods();
+
+    // Display account cancellation method selection, if allowed.
+    $admin_access = $user->hasPermission('administer users');
+    $form['user_cancel_method'] = array(
+      '#type' => 'radios',
+      '#title' => ($this->entity->id() == $user->id() ? $this->t('When cancelling your account') : $this->t('When cancelling the account')),
+      '#access' => $admin_access || $user->hasPermission('select account cancellation method'),
+    );
+    $form['user_cancel_method'] += $this->cancelMethods;
+
+    // Allow user administrators to skip the account cancellation confirmation
+    // mail (by default), as long as they do not attempt to cancel their own
+    // account.
+    $override_access = $admin_access && ($this->entity->id() != $user->id());
+    $form['user_cancel_confirm'] = array(
+      '#type' => 'checkbox',
+      '#title' => $this->t('Require e-mail confirmation to cancel account.'),
+      '#default_value' => !$override_access,
+      '#access' => $override_access,
+      '#description' => $this->t('When enabled, the user must confirm the account cancellation via e-mail.'),
+    );
+    // Also allow to send account canceled notification mail, if enabled.
+    $default_notify = $this->configFactory->get('user.settings')->get('notify.status_canceled');
+    $form['user_cancel_notify'] = array(
+      '#type' => 'checkbox',
+      '#title' => $this->t('Notify user when account is canceled.'),
+      '#default_value' => ($override_access ? FALSE : $default_notify),
+      '#access' => $override_access && $default_notify,
+      '#description' => $this->t('When enabled, the user will receive an e-mail notification after the account has been canceled.'),
+    );
+
+    // Always provide entity id in the same form key as in the entity edit form.
+    $form['uid'] = array('#type' => 'value', '#value' => $this->entity->id());
+
+    $form = parent::buildForm($form, $form_state);
+
+    // @todo Convert to getCancelRoute() after https://drupal.org/node/1987896.
+    $uri = $this->entity->uri();
+    $form['actions']['cancel']['#href'] = $uri['path'];
+    return $form;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function submit(array $form, array &$form_state) {
+    // Cancel account immediately, if the current user has administrative
+    // privileges, no confirmation mail shall be sent, and the user does not
+    // attempt to cancel the own account.
+    if ($this->currentUser()->hasPermission('administer users') && empty($form_state['values']['user_cancel_confirm']) && $this->entity->id() != $this->currentUser()->id()) {
+      user_cancel($form_state['values'], $this->entity->id(), $form_state['values']['user_cancel_method']);
+
+      $form_state['redirect'] = 'admin/people';
+    }
+    else {
+      // Store cancelling method and whether to notify the user in
+      // $this->entity for user_cancel_confirm().
+      $this->entity->user_cancel_method = $form_state['values']['user_cancel_method'];
+      $this->entity->user_cancel_notify = $form_state['values']['user_cancel_notify'];
+      $this->entity->save();
+      _user_mail_notify('cancel_confirm', $this->entity);
+      drupal_set_message($this->t('A confirmation request to cancel your account has been sent to your e-mail address.'));
+      watchdog('user', 'Sent account cancellation request to %name %email.', array('%name' => $this->entity->label(), '%email' => '<' . $this->entity->getEmail() . '>'), WATCHDOG_NOTICE);
+
+      $form_state['redirect'] = 'user/' . $this->entity->id();
+    }
+  }
+
+}
diff --git a/core/modules/user/lib/Drupal/user/Form/UserMultipleCancelConfirm.php b/core/modules/user/lib/Drupal/user/Form/UserMultipleCancelConfirm.php
new file mode 100644
index 0000000..f63d879
--- /dev/null
+++ b/core/modules/user/lib/Drupal/user/Form/UserMultipleCancelConfirm.php
@@ -0,0 +1,216 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\user\Form\UserMultipleCancelConfirm.
+ */
+
+namespace Drupal\user\Form;
+
+use Drupal\Component\Utility\String;
+use Drupal\Core\Config\ConfigFactory;
+use Drupal\Core\Entity\EntityManager;
+use Drupal\Core\Form\ConfirmFormBase;
+use Drupal\Core\Routing\UrlGeneratorInterface;
+use Drupal\user\TempStoreFactory;
+use Drupal\user\UserStorageControllerInterface;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+use Symfony\Component\HttpFoundation\RedirectResponse;
+
+/**
+ * Provides a confirmation form for cancelling multiple user accounts.
+ */
+class UserMultipleCancelConfirm extends ConfirmFormBase {
+
+  /**
+   * The temp store factory.
+   *
+   * @var \Drupal\user\TempStoreFactory
+   */
+  protected $tempStoreFactory;
+
+  /**
+   * The config factory.
+   *
+   * @var \Drupal\Core\Config\ConfigFactory
+   */
+  protected $configFactory;
+
+  /**
+   * The user storage controller.
+   *
+   * @var \Drupal\user\UserStorageControllerInterface
+   */
+  protected $userStorage;
+
+  /**
+   * The entity manager.
+   *
+   * @var \Drupal\Core\Entity\EntityManager
+   */
+  protected $entityManager;
+
+  /**
+   * Constructs a new UserMultipleCancelConfirm.
+   *
+   * @param \Drupal\user\TempStoreFactory $temp_store_factory
+   *   The temp store factory.
+   * @param \Drupal\Core\Config\ConfigFactory $config_factory
+   *   The config factory.
+   * @param \Drupal\user\UserStorageControllerInterface $user_storage
+   *   The user storage controller.
+   * @param \Drupal\Core\Entity\EntityManager $entity_manager
+   *   The entity manager.
+   */
+  public function __construct(TempStoreFactory $temp_store_factory, ConfigFactory $config_factory, UserStorageControllerInterface $user_storage, EntityManager $entity_manager) {
+    $this->tempStoreFactory = $temp_store_factory;
+    $this->configFactory = $config_factory;
+    $this->userStorage = $user_storage;
+    $this->entityManager = $entity_manager;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container) {
+    return new static(
+      $container->get('user.tempstore'),
+      $container->get('config.factory'),
+      $container->get('entity.manager')->getStorageController('user'),
+      $container->get('entity.manager')
+    );
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getFormID() {
+    return 'user_multiple_cancel_confirm';
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getQuestion() {
+    return $this->t('Are you sure you want to cancel these user accounts?');
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getCancelRoute() {
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getConfirmText() {
+    return $this->t('Cancel accounts');
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildForm(array $form, array &$form_state) {
+    // Retrieve the accounts to be canceled from the temp store.
+    $accounts = $this->tempStoreFactory
+      ->get('user_user_operations_cancel')
+      ->get($this->currentUser()->id());
+    if (!$accounts) {
+      return new RedirectResponse($this->urlGenerator()->generateFromPath('admin/people', array('absolute' => TRUE)));
+    }
+
+    $form['accounts'] = array('#prefix' => '<ul>', '#suffix' => '</ul>', '#tree' => TRUE);
+    foreach ($accounts as $uid => $account) {
+      // Prevent user 1 from being canceled.
+      if ($uid <= 1) {
+        continue;
+      }
+      $form['accounts'][$uid] = array(
+        '#type' => 'hidden',
+        '#value' => $uid,
+        '#prefix' => '<li>',
+        '#suffix' => String::checkPlain($account->label()) . "</li>\n",
+      );
+    }
+
+    // Output a notice that user 1 cannot be canceled.
+    if (isset($accounts[1])) {
+      $redirect = (count($accounts) == 1);
+      $message = $this->t('The user account %name cannot be canceled.', array('%name' => $accounts[1]->label()));
+      drupal_set_message($message, $redirect ? 'error' : 'warning');
+      // If only user 1 was selected, redirect to the overview.
+      if ($redirect) {
+        return new RedirectResponse($this->urlGenerator()->generateFromPath('admin/people', array('absolute' => TRUE)));
+      }
+    }
+
+    $form['operation'] = array('#type' => 'hidden', '#value' => 'cancel');
+
+    $form['user_cancel_method'] = array(
+      '#type' => 'radios',
+      '#title' => $this->t('When cancelling these accounts'),
+    );
+
+    $form['user_cancel_method'] += user_cancel_methods();
+
+    // Allow to send the account cancellation confirmation mail.
+    $form['user_cancel_confirm'] = array(
+      '#type' => 'checkbox',
+      '#title' => $this->t('Require e-mail confirmation to cancel account.'),
+      '#default_value' => FALSE,
+      '#description' => $this->t('When enabled, the user must confirm the account cancellation via e-mail.'),
+    );
+    // Also allow to send account canceled notification mail, if enabled.
+    $form['user_cancel_notify'] = array(
+      '#type' => 'checkbox',
+      '#title' => $this->t('Notify user when account is canceled.'),
+      '#default_value' => FALSE,
+      '#access' => $this->configFactory->get('user.settings')->get('notify.status_canceled'),
+      '#description' => $this->t('When enabled, the user will receive an e-mail notification after the account has been canceled.'),
+    );
+
+    $form = parent::buildForm($form, $form_state);
+
+    // @todo Convert to getCancelRoute() after https://drupal.org/node/1938884.
+    $form['actions']['cancel']['#href'] = 'admin/people';
+    return $form;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function submitForm(array &$form, array &$form_state) {
+    $current_user_id = $this->currentUser()->id();
+
+    // Clear out the accounts from the temp store.
+    $this->tempStoreFactory->get('user_user_operations_cancel')->delete($current_user_id);
+    if ($form_state['values']['confirm']) {
+      foreach ($form_state['values']['accounts'] as $uid => $value) {
+        // Prevent programmatic form submissions from cancelling user 1.
+        if ($uid <= 1) {
+          continue;
+        }
+        // Prevent user administrators from deleting themselves without confirmation.
+        if ($uid == $current_user_id) {
+          $admin_form_mock = array();
+          $admin_form_state = $form_state;
+          unset($admin_form_state['values']['user_cancel_confirm']);
+          // The $user global is not a complete user entity, so load the full
+          // entity.
+          $account = $this->userStorage->load($uid);
+          $admin_form = $this->entityManager->getFormController('user', 'cancel');
+          $admin_form->setEntity($account);
+          // Calling this directly required to init form object with $account.
+          $admin_form->buildForm($admin_form_mock, $admin_form_state, $this->request);
+          $admin_form->submit($admin_form_mock, $admin_form_state);
+        }
+        else {
+          user_cancel($form_state['values'], $uid, $form_state['values']['user_cancel_method']);
+        }
+      }
+    }
+    $form_state['redirect'] = 'admin/people';
+  }
+
+}
diff --git a/core/modules/user/user.module b/core/modules/user/user.module
index f629882..fe32089 100644
--- a/core/modules/user/user.module
+++ b/core/modules/user/user.module
@@ -824,14 +824,6 @@ function user_menu() {
     'route_name' => 'user_admin_create',
     'type' => MENU_LOCAL_ACTION,
   );
-  $items['admin/people/cancel'] = array(
-    'title' => 'Cancel user',
-    'page callback' => 'drupal_get_form',
-    'page arguments' => array('user_multiple_cancel_confirm'),
-    'access arguments' => array('administer users'),
-    'file' => 'user.admin.inc',
-    'type' => MENU_CALLBACK,
-  );
 
   // Administration pages.
   $items['admin/config/people'] = array(
@@ -867,12 +859,7 @@ function user_menu() {
     'type' => MENU_DEFAULT_LOCAL_TASK,
   );
   $items['user/%user/cancel'] = array(
-    'title' => 'Cancel account',
-    'page callback' => 'drupal_get_form',
-    'page arguments' => array('user_cancel_confirm_form', 1),
-    'access callback' => 'entity_page_access',
-    'access arguments' => array(1, 'delete'),
-    'file' => 'user.pages.inc',
+    'route_name' => 'user_cancel_confirm',
   );
   $items['user/%user/cancel/confirm/%/%'] = array(
     'title' => 'Confirm account cancellation',
@@ -1305,6 +1292,62 @@ function _user_cancel_session_regenerate() {
 }
 
 /**
+ * Helper function to return available account cancellation methods.
+ *
+ * See documentation of hook_user_cancel_methods_alter().
+ *
+ * @return array
+ *   An array containing all account cancellation methods as form elements.
+ *
+ * @see hook_user_cancel_methods_alter()
+ * @see user_admin_settings()
+ */
+function user_cancel_methods() {
+  $user_settings = Drupal::config('user.settings');
+  $anonymous_name = $user_settings->get('anonymous');
+  $methods = array(
+    'user_cancel_block' => array(
+      'title' => t('Disable the account and keep its content.'),
+      'description' => t('Your account will be blocked and you will no longer be able to log in. All of your content will remain attributed to your user name.'),
+    ),
+    'user_cancel_block_unpublish' => array(
+      'title' => t('Disable the account and unpublish its content.'),
+      'description' => t('Your account will be blocked and you will no longer be able to log in. All of your content will be hidden from everyone but administrators.'),
+    ),
+    'user_cancel_reassign' => array(
+      'title' => t('Delete the account and make its content belong to the %anonymous-name user.', array('%anonymous-name' => $anonymous_name)),
+      'description' => t('Your account will be removed and all account information deleted. All of your content will be assigned to the %anonymous-name user.', array('%anonymous-name' => $anonymous_name)),
+    ),
+    'user_cancel_delete' => array(
+      'title' => t('Delete the account and its content.'),
+      'description' => t('Your account will be removed and all account information deleted. All of your content will also be deleted.'),
+      'access' => Drupal::request()->attributes->get('_account')->hasPermission('administer users'),
+    ),
+  );
+  // Allow modules to customize account cancellation methods.
+  Drupal::moduleHandler()->alter('user_cancel_methods', $methods);
+
+  // Turn all methods into real form elements.
+  $form = array(
+    '#options' => array(),
+    '#default_value' => $user_settings->get('cancel_method'),
+  );
+  foreach ($methods as $name => $method) {
+    $form['#options'][$name] = $method['title'];
+    // Add the description for the confirmation form. This description is never
+    // shown for the cancel method option, only on the confirmation form.
+    // Therefore, we use a custom #confirm_description property.
+    if (isset($method['description'])) {
+      $form[$name]['#confirm_description'] = $method['description'];
+    }
+    if (isset($method['access'])) {
+      $form[$name]['#access'] = $method['access'];
+    }
+  }
+  return $form;
+}
+
+/**
  * Delete a user.
  *
  * @param $uid
@@ -1663,100 +1706,6 @@ function user_role_revoke_permissions($rid, array $permissions = array()) {
   $role->save();
 }
 
-function user_multiple_cancel_confirm($form, &$form_state) {
-  // Retrieve the accounts to be canceled from the temp store.
-  $accounts = Drupal::service('user.tempstore')->get('user_user_operations_cancel')->get($GLOBALS['user']->id());
-  $form['accounts'] = array('#prefix' => '<ul>', '#suffix' => '</ul>', '#tree' => TRUE);
-  foreach ($accounts as $account) {
-    $uid = $account->id();
-    // Prevent user 1 from being canceled.
-    if ($uid <= 1) {
-      continue;
-    }
-    $form['accounts'][$uid] = array(
-      '#type' => 'hidden',
-      '#value' => $uid,
-      '#prefix' => '<li>',
-      '#suffix' => check_plain($account->getUsername()) . "</li>\n",
-    );
-  }
-
-  // Output a notice that user 1 cannot be canceled.
-  if (isset($accounts[1])) {
-    $redirect = (count($accounts) == 1);
-    $message = t('The user account %name cannot be cancelled.', array('%name' => $accounts[1]->name->value));
-    drupal_set_message($message, $redirect ? 'error' : 'warning');
-    // If only user 1 was selected, redirect to the overview.
-    if ($redirect) {
-      return new RedirectResponse(url('admin/people', array('absolute' => TRUE)));
-    }
-  }
-
-  $form['operation'] = array('#type' => 'hidden', '#value' => 'cancel');
-
-  form_load_include($form_state, 'inc', 'user', 'user.pages');
-  $form['user_cancel_method'] = array(
-    '#type' => 'radios',
-    '#title' => t('When cancelling these accounts'),
-  );
-  $form['user_cancel_method'] += user_cancel_methods();
-
-  // Allow to send the account cancellation confirmation mail.
-  $form['user_cancel_confirm'] = array(
-    '#type' => 'checkbox',
-    '#title' => t('Require e-mail confirmation to cancel account.'),
-    '#default_value' => FALSE,
-    '#description' => t('When enabled, the user must confirm the account cancellation via e-mail.'),
-  );
-  // Also allow to send account canceled notification mail, if enabled.
-  $form['user_cancel_notify'] = array(
-    '#type' => 'checkbox',
-    '#title' => t('Notify user when account is canceled.'),
-    '#default_value' => FALSE,
-    '#access' => Drupal::config('user.settings')->get('notify.status_canceled'),
-    '#description' => t('When enabled, the user will receive an e-mail notification after the account has been cancelled.'),
-  );
-
-  return confirm_form($form,
-                      t('Are you sure you want to cancel these user accounts?'),
-                      'admin/people', t('This action cannot be undone.'),
-                      t('Cancel accounts'), t('Cancel'));
-}
-
-/**
- * Submit handler for mass-account cancellation form.
- *
- * @see user_multiple_cancel_confirm()
- * @see user_cancel_confirm_form_submit()
- */
-function user_multiple_cancel_confirm_submit($form, &$form_state) {
-  global $user;
-
-  // Clear out the accounts from the temp store.
-  Drupal::service('user.tempstore')->get('user_user_operations_cancel')->delete($user->id());
-  if ($form_state['values']['confirm']) {
-    foreach ($form_state['values']['accounts'] as $uid => $value) {
-      // Prevent programmatic form submissions from cancelling user 1.
-      if ($uid <= 1) {
-        continue;
-      }
-      // Prevent user administrators from deleting themselves without confirmation.
-      if ($uid == $user->id()) {
-        $admin_form_state = $form_state;
-        unset($admin_form_state['values']['user_cancel_confirm']);
-        // The $user global is not a complete user entity, so load the full
-        // entity.
-        $admin_form_state['values']['_account'] = user_load($user->id());
-        user_cancel_confirm_form_submit(array(), $admin_form_state);
-      }
-      else {
-        user_cancel($form_state['values'], $uid, $form_state['values']['user_cancel_method']);
-      }
-    }
-  }
-  $form_state['redirect'] = 'admin/people';
-}
-
 /**
  * Returns HTML for a user signature.
  *
diff --git a/core/modules/user/user.pages.inc b/core/modules/user/user.pages.inc
index 18343bc..a9cf426 100644
--- a/core/modules/user/user.pages.inc
+++ b/core/modules/user/user.pages.inc
@@ -119,165 +119,6 @@ function template_preprocess_user(&$variables) {
 }
 
 /**
- * Form builder; confirm form for cancelling user account.
- *
- * @ingroup forms
- * @see user_edit_cancel_submit()
- */
-function user_cancel_confirm_form($form, &$form_state, $account) {
-  global $user;
-
-  $form['_account'] = array('#type' => 'value', '#value' => $account);
-
-  // Display account cancellation method selection, if allowed.
-  $admin_access = user_access('administer users');
-  $can_select_method = $admin_access || user_access('select account cancellation method');
-  $form['user_cancel_method'] = array(
-    '#type' => 'radios',
-    '#title' => ($account->id() == $user->id() ? t('When cancelling your account') : t('When cancelling the account')),
-    '#access' => $can_select_method,
-  );
-  $form['user_cancel_method'] += user_cancel_methods();
-
-  // Allow user administrators to skip the account cancellation confirmation
-  // mail (by default), as long as they do not attempt to cancel their own
-  // account.
-  $override_access = $admin_access && ($account->id() != $user->id());
-  $form['user_cancel_confirm'] = array(
-    '#type' => 'checkbox',
-    '#title' => t('Require e-mail confirmation to cancel account.'),
-    '#default_value' => ($override_access ? FALSE : TRUE),
-    '#access' => $override_access,
-    '#description' => t('When enabled, the user must confirm the account cancellation via e-mail.'),
-  );
-  // Also allow to send account canceled notification mail, if enabled.
-  $default_notify = Drupal::config('user.settings')->get('notify.status_canceled');
-  $form['user_cancel_notify'] = array(
-    '#type' => 'checkbox',
-    '#title' => t('Notify user when account is canceled.'),
-    '#default_value' => ($override_access ? FALSE : $default_notify),
-    '#access' => $override_access && $default_notify,
-    '#description' => t('When enabled, the user will receive an e-mail notification after the account has been cancelled.'),
-  );
-
-  // Prepare confirmation form page title and description.
-  if ($account->id() == $user->id()) {
-    $question = t('Are you sure you want to cancel your account?');
-  }
-  else {
-    $question = t('Are you sure you want to cancel the account %name?', array('%name' => $account->getUsername()));
-  }
-  $default_method = Drupal::config('user.settings')->get('cancel_method');
-  $description = NULL;
-  if ($can_select_method) {
-    $description = t('Select the method to cancel the account above.');
-  }
-  // Options supplied via user_cancel_methods() can have a custom
-  // #confirm_description property for the confirmation form description.
-  elseif (isset($form['user_cancel_method'][$default_method]['#confirm_description'])) {
-    $description = $form['user_cancel_method'][$default_method]['#confirm_description'];
-  }
-
-  // Always provide entity id in the same form key as in the entity edit form.
-  $form['uid'] = array('#type' => 'value', '#value' => $account->id());
-  return confirm_form($form,
-    $question,
-    'user/' . $account->id(),
-    $description . ' ' . t('This action cannot be undone.'),
-    t('Cancel account'), t('Cancel'));
-}
-
-/**
- * Submit handler for the account cancellation confirm form.
- *
- * @see user_cancel_confirm_form()
- * @see user_multiple_cancel_confirm_submit()
- */
-function user_cancel_confirm_form_submit($form, &$form_state) {
-  global $user;
-  $account = $form_state['values']['_account'];
-
-  // Cancel account immediately, if the current user has administrative
-  // privileges, no confirmation mail shall be sent, and the user does not
-  // attempt to cancel the own account.
-  if (user_access('administer users') && empty($form_state['values']['user_cancel_confirm']) && $account->id() != $user->id()) {
-    user_cancel($form_state['values'], $account->id(), $form_state['values']['user_cancel_method']);
-
-    $form_state['redirect'] = 'admin/people';
-  }
-  else {
-    // Store cancelling method and whether to notify the user in $account for
-    // user_cancel_confirm().
-    $account->user_cancel_method = $form_state['values']['user_cancel_method'];
-    $account->user_cancel_notify = $form_state['values']['user_cancel_notify'];
-    $account->save();
-    _user_mail_notify('cancel_confirm', $account);
-    drupal_set_message(t('A confirmation request to cancel your account has been sent to your e-mail address.'));
-    watchdog('user', 'Sent account cancellation request to %name %email.', array('%name' => $account->getUsername(), '%email' => '<' . $account->getEmail() . '>'), WATCHDOG_NOTICE);
-
-    $form_state['redirect'] = "user/" . $account->id();
-  }
-}
-
-/**
- * Helper function to return available account cancellation methods.
- *
- * See documentation of hook_user_cancel_methods_alter().
- *
- * @return
- *   An array containing all account cancellation methods as form elements.
- *
- * @see hook_user_cancel_methods_alter()
- * @see user_admin_settings()
- * @see user_cancel_confirm_form()
- * @see user_multiple_cancel_confirm()
- */
-function user_cancel_methods() {
-  $anonymous_name = Drupal::config('user.settings')->get('anonymous');
-  $methods = array(
-    'user_cancel_block' => array(
-      'title' => t('Disable the account and keep its content.'),
-      'description' => t('Your account will be blocked and you will no longer be able to log in. All of your content will remain attributed to your user name.'),
-    ),
-    'user_cancel_block_unpublish' => array(
-      'title' => t('Disable the account and unpublish its content.'),
-      'description' => t('Your account will be blocked and you will no longer be able to log in. All of your content will be hidden from everyone but administrators.'),
-    ),
-    'user_cancel_reassign' => array(
-      'title' => t('Delete the account and make its content belong to the %anonymous-name user.', array('%anonymous-name' => $anonymous_name)),
-      'description' => t('Your account will be removed and all account information deleted. All of your content will be assigned to the %anonymous-name user.', array('%anonymous-name' => $anonymous_name)),
-    ),
-    'user_cancel_delete' => array(
-      'title' => t('Delete the account and its content.'),
-      'description' => t('Your account will be removed and all account information deleted. All of your content will also be deleted.'),
-      'access' => user_access('administer users'),
-    ),
-  );
-  // Allow modules to customize account cancellation methods.
-  drupal_alter('user_cancel_methods', $methods);
-
-  // Turn all methods into real form elements.
-  $default_method = Drupal::config('user.settings')->get('cancel_method');
-  $form = array(
-    '#options' => array(),
-    '#default_value' => $default_method,
-  );
-  foreach ($methods as $name => $method) {
-    $form['#options'][$name] = $method['title'];
-    // Add the description for the confirmation form. This description is never
-    // shown for the cancel method option, only on the confirmation form.
-    // Therefore, we use a custom #confirm_description property.
-    if (isset($method['description'])) {
-      $form[$name]['#confirm_description'] = $method['description'];
-    }
-    if (isset($method['access'])) {
-      $form[$name]['#access'] = $method['access'];
-    }
-  }
-  return $form;
-}
-
-/**
  * Menu callback; Cancel a user account via e-mail confirmation link.
  *
  * @see user_cancel_confirm_form()
diff --git a/core/modules/user/user.routing.yml b/core/modules/user/user.routing.yml
index ba75389..9e101a4 100644
--- a/core/modules/user/user.routing.yml
+++ b/core/modules/user/user.routing.yml
@@ -61,6 +61,14 @@ user_admin_permission:
   requirements:
     _permission: 'administer permissions'
 
+user_multiple_cancel_confirm:
+  pattern: '/admin/people/cancel'
+  defaults:
+    _form: '\Drupal\user\Form\UserMultipleCancelConfirm'
+    _title: 'Cancel user'
+  requirements:
+    _permission: 'administer users'
+
 user_role_list:
   pattern: '/admin/people/roles'
   defaults:
@@ -116,3 +124,11 @@ user_edit:
     _entity_form: 'user.default'
   requirements:
     _entity_access: 'user.update'
+
+user_cancel_confirm:
+  pattern: '/user/{user}/cancel'
+  defaults:
+    _title: 'Cancel account'
+    _entity_form: 'user.cancel'
+  requirements:
+    _entity_access: 'user.delete'