Issue #1957152 by brantwynn: Replace calls to the flood service with Drupal::flood().

core/modules/contact/lib/Drupal/contact/MessageFormController.php

@@ -8,9 +8,13 @@
 namespace Drupal\contact;
 
 use Drupal\Component\Utility\String;
+use Drupal\Core\Config\ConfigFactoryInterface;
 use Drupal\Core\Entity\ContentEntityFormController;
+use Drupal\Core\Entity\EntityManagerInterface;
+use Drupal\Core\Flood\FloodInterface;
 use Drupal\Core\Language\Language;
 use Drupal\user\UserInterface;
+use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
  * Form controller for contact message forms.
@@ -24,6 +28,48 @@ class MessageFormController extends ContentEntityFormController {
    */
   protected $entity;
 
+  /**
+   * The config factory service.
+   *
+   * @var \Drupal\Core\Config\ConfigFactoryInterface
+   */
+  protected $configFactory;
+
+  /**
+   * The flood control mechanism.
+   *
+   * @var \Drupal\Core\Flood\FloodInterface
+   */
+  protected $flood;
+
+  /**
+   * Constructs a MessageFormController object.
+   *
+   * @param \Drupal\Core\Config\ConfigFactoryInterface $config_factory
+   *   The factory for configuration objects.
+   * @param \Drupal\Core\Entity\EntityManagerInterface $entity_manager
+   *   The entity manager.
+   * @param \Drupal\Core\Flood\FloodInterface $flood
+   *   The flood control mechanism.
+   */
+  public function __construct(ConfigFactoryInterface $config_factory, EntityManagerInterface $entity_manager, FloodInterface $flood) {
+    parent::__construct($entity_manager);
+
+    $this->configFactory = $config_factory;
+    $this->flood = $flood;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container) {
+    return new static(
+      $container->get('config.factory'),
+      $container->get('entity.manager'),
+      $container->get('flood')
+    );
+  }
+
   /**
    * Overrides Drupal\Core\Entity\EntityFormController::form().
    */
@@ -195,7 +241,8 @@ public function save(array $form, array &$form_state) {
       drupal_mail('contact', 'page_autoreply', $sender->getEmail(), $language_interface->id, $params);
     }
 
-    \Drupal::service('flood')->register('contact', \Drupal::config('contact.settings')->get('flood.interval'));
+    $config = $this->configFactory->get('contact.settings');
+    $this->flood->register('contact', $config->get('flood.interval'));
     if (!$message->isPersonal()) {
       watchdog('contact', '%sender-name (@sender-from) sent an e-mail regarding %category.', array(
         '%sender-name' => $sender->name,

core/modules/system/lib/Drupal/system/Tests/System/FloodTest.php

@@ -48,7 +48,7 @@ function testCleanUp() {
     $name = 'flood_test_cleanup';
 
     // Register expired event.
-    $flood = \Drupal::service('flood');
+    $flood = \Drupal::flood();
     $flood->register($name, $window_expired);
     // Verify event is not allowed.
     $this->assertFalse($flood->isAllowed($name, $threshold));

core/modules/system/system.module

@@ -1558,7 +1558,7 @@ function system_get_module_admin_tasks($module, array $info) {
  */
 function system_cron() {
   // Cleanup the flood.
-  \Drupal::service('flood')->garbageCollection();
+  \Drupal::flood()->garbageCollection();
 
   foreach (Cache::getBins() as $cache_backend) {
     $cache_backend->garbageCollection();