Update to drupal 8.0.0-rc1. For more information, see https://www.drupal.org/node/2582663

vendor/symfony/http-kernel/Event/PostResponseEvent.php

@@ -0,0 +1,73 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\HttpKernel\Event;
+
+use Symfony\Component\HttpKernel\HttpKernelInterface;
+use Symfony\Component\EventDispatcher\Event;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+
+/**
+ * Allows to execute logic after a response was sent.
+ *
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ */
+class PostResponseEvent extends Event
+{
+    /**
+     * The kernel in which this event was thrown.
+     *
+     * @var HttpKernelInterface
+     */
+    private $kernel;
+
+    private $request;
+
+    private $response;
+
+    public function __construct(HttpKernelInterface $kernel, Request $request, Response $response)
+    {
+        $this->kernel = $kernel;
+        $this->request = $request;
+        $this->response = $response;
+    }
+
+    /**
+     * Returns the kernel in which this event was thrown.
+     *
+     * @return HttpKernelInterface
+     */
+    public function getKernel()
+    {
+        return $this->kernel;
+    }
+
+    /**
+     * Returns the request for which this event was thrown.
+     *
+     * @return Request
+     */
+    public function getRequest()
+    {
+        return $this->request;
+    }
+
+    /**
+     * Returns the response for which this event was thrown.
+     *
+     * @return Response
+     */
+    public function getResponse()
+    {
+        return $this->response;
+    }
+}