Everywhere: Hoist the Libraries folder to the top-level

Author: https://github.com/trflynn89
Commit: 93712b24bf
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2256
Reviewed-by: https://github.com/sideshowbarker

Libraries/LibWeb/ReferrerPolicy/ReferrerPolicy.h

@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2022, Linus Groh <linusg@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <AK/Optional.h>
+#include <AK/StringView.h>
+
+namespace Web::ReferrerPolicy {
+
+// https://w3c.github.io/webappsec-referrer-policy/#enumdef-referrerpolicy
+enum class ReferrerPolicy {
+    EmptyString,
+    NoReferrer,
+    NoReferrerWhenDowngrade,
+    SameOrigin,
+    Origin,
+    StrictOrigin,
+    OriginWhenCrossOrigin,
+    StrictOriginWhenCrossOrigin,
+    UnsafeURL,
+};
+
+// https://w3c.github.io/webappsec-referrer-policy/#default-referrer-policy
+// The default referrer policy is "strict-origin-when-cross-origin".
+constexpr auto DEFAULT_REFERRER_POLICY = ReferrerPolicy::StrictOriginWhenCrossOrigin;
+
+StringView to_string(ReferrerPolicy);
+Optional<ReferrerPolicy> from_string(StringView);
+
+}