diff --git a/core/lib/Drupal/Core/Extension/UpdateModuleHandler.php b/core/lib/Drupal/Core/Extension/UpdateModuleHandler.php
index 0ef5259..595bc0f 100644
--- a/core/lib/Drupal/Core/Extension/UpdateModuleHandler.php
+++ b/core/lib/Drupal/Core/Extension/UpdateModuleHandler.php
@@ -30,22 +30,24 @@ public function getImplementations($hook) {
       // Allow logging.
       case 'watchdog':
         return parent::getImplementations($hook);
+
       // Forms and pages do not render without the basic elements defined in
       // system_element_info().
       case 'element_info':
       // Forms do not render without the basic elements in
       // drupal_common_theme() called from system_theme().
       case 'theme':
-      // user_update_8011() uses public:// to create the image style directory.
-      case 'stream_wrappers':
         return array('system');
+
       // This is called during rebuild to find testing themes.
       case 'system_theme_info':
         return array();
-      // t() in system_stream_wrappers() needs this. Other schema calls aren't
-      // supported.
+
+      // t() (called indirectly by \Drupal\Core\StreamWrapper\PublicStream)
+      // needs this. Other schema calls aren't supported.
       case 'schema':
         return array('locale');
+
       default:
         throw new \LogicException("Invoking hooks $hook is not supported during updates");
     }