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/CSS/CSSLayerBlockRule.h

@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2024, Sam Atkins <sam@ladybird.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <LibWeb/CSS/CSSGroupingRule.h>
+
+namespace Web::CSS {
+
+// https://drafts.csswg.org/css-cascade-5/#the-csslayerblockrule-interface
+class CSSLayerBlockRule final : public CSSGroupingRule {
+    WEB_PLATFORM_OBJECT(CSSLayerBlockRule, CSSGroupingRule);
+    JS_DECLARE_ALLOCATOR(CSSLayerBlockRule);
+
+public:
+    [[nodiscard]] static JS::NonnullGCPtr<CSSLayerBlockRule> create(JS::Realm&, FlyString name, CSSRuleList&);
+
+    static FlyString next_unique_anonymous_layer_name();
+
+    virtual ~CSSLayerBlockRule() = default;
+
+    FlyString const& name() const { return m_name; }
+    FlyString const& internal_name() const { return m_name_internal; }
+    FlyString internal_qualified_name(Badge<StyleComputer>) const;
+
+private:
+    CSSLayerBlockRule(JS::Realm&, FlyString name, CSSRuleList&);
+
+    virtual void initialize(JS::Realm&) override;
+    virtual String serialized() const override;
+
+    FlyString m_name;
+    FlyString m_name_internal;
+};
+
+}