LibWeb: Implement the OES_element_index_uint WebGL extension

Author: https://github.com/cqundefine
Commit: https://github.com/LadybirdBrowser/ladybird/commit/3c4a31bca77
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/6978
Reviewed-by: https://github.com/ADKaster ✅
Reviewed-by: https://github.com/gmta
Reviewed-by: https://github.com/konradekk

Libraries/LibWeb/WebGL/Extensions/OESElementIndexUint.h

@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2025, Undefine <undefine@undefine.pl>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <LibWeb/Bindings/PlatformObject.h>
+#include <LibWeb/Forward.h>
+
+namespace Web::WebGL::Extensions {
+
+class OESElementIndexUint : public Bindings::PlatformObject {
+    WEB_PLATFORM_OBJECT(OESElementIndexUint, Bindings::PlatformObject);
+    GC_DECLARE_ALLOCATOR(OESElementIndexUint);
+
+public:
+    static JS::ThrowCompletionOr<GC::Ptr<OESElementIndexUint>> create(JS::Realm&, GC::Ref<WebGLRenderingContext>);
+
+protected:
+    void initialize(JS::Realm&) override;
+    void visit_edges(Visitor&) override;
+
+private:
+    OESElementIndexUint(JS::Realm&, GC::Ref<WebGLRenderingContext>);
+
+    GC::Ref<WebGLRenderingContext> m_context;
+};
+
+}