LibWeb: Implement MediaCapabilities.decodingInfo()

Author: https://github.com/Psychpsyo
Commit: 0206697d36
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/3548
Reviewed-by: https://github.com/ADKaster ✅
Reviewed-by: https://github.com/Lubrsi
Reviewed-by: https://github.com/shannonbooth

Libraries/LibWeb/EncryptedMediaExtensions/EncryptedMediaExtensions.h

@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2025, Psychpsyo <psychpsyo@gmail.com>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+namespace Web::Bindings {
+
+// https://w3c.github.io/encrypted-media/#dom-mediakeysrequirement
+enum class MediaKeysRequirement {
+    Required,
+    Optional,
+    NotAllowed
+};
+
+}