diff --git a/core/modules/toolbar/src/Controller/ToolbarController.php b/core/modules/toolbar/src/Controller/ToolbarController.php
index 11d17b4..7290160 100644
--- a/core/modules/toolbar/src/Controller/ToolbarController.php
+++ b/core/modules/toolbar/src/Controller/ToolbarController.php
@@ -10,7 +10,6 @@
 use Drupal\Core\Access\AccessInterface;
 use Drupal\Core\Controller\ControllerBase;
 use Symfony\Component\HttpFoundation\JsonResponse;
-use Symfony\Component\HttpFoundation\Request;
 
 /**
  * Defines a controller for the toolbar module.
@@ -33,8 +32,8 @@ public function subtreesJsonp() {
   /**
    * Checks access for the subtree controller.
    *
-   * @param \Symfony\Component\HttpFoundation\Request $request
-   *   The current request.
+   * @param string $hash
+   *   The hash of the toolbar subtrees.
    * @param string $langcode
    *   The langcode of the requested site, NULL if none given.
    *
@@ -42,8 +41,7 @@ public function subtreesJsonp() {
    *   Returns AccessInterface::ALLOW when access was granted, otherwise
    *   AccessInterface::DENY.
    */
-  public function checkSubTreeAccess(Request $request, $langcode) {
-    $hash = $request->get('hash');
+  public function checkSubTreeAccess($hash, $langcode) {
     return ($this->currentUser()->hasPermission('access toolbar') && ($hash == _toolbar_get_subtrees_hash($langcode))) ? AccessInterface::ALLOW : AccessInterface::DENY;
   }