diff core/modules/system/src/Plugin/ImageToolkit/GDToolkit.php @ 17:129ea1e6d783

Update, including to Drupal core 8.6.10

--- a/core/modules/system/src/Plugin/ImageToolkit/GDToolkit.php	Tue Jul 10 15:07:59 2018 +0100
+++ b/core/modules/system/src/Plugin/ImageToolkit/GDToolkit.php	Thu Feb 28 13:21:36 2019 +0000
@@ -3,7 +3,6 @@
 namespace Drupal\system\Plugin\ImageToolkit;
 
 use Drupal\Component\Utility\Color;
-use Drupal\Component\Utility\Unicode;
 use Drupal\Core\Config\ConfigFactoryInterface;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\ImageToolkit\ImageToolkitBase;
@@ -395,7 +394,7 @@
     foreach (static::supportedTypes() as $image_type) {
       // @todo Automatically fetch possible extensions for each mime type.
       // @see https://www.drupal.org/node/2311679
-      $extension = Unicode::strtolower(image_type_to_extension($image_type, FALSE));
+      $extension = mb_strtolower(image_type_to_extension($image_type, FALSE));
       $extensions[] = $extension;
       // Add some known similar extensions.
       if ($extension === 'jpeg') {