Everywhere: Hoist the Libraries folder to the top-level

Libraries/LibWeb/HTML/HTMLFrameElement.h

@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2020, the SerenityOS developers.
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <LibWeb/HTML/NavigableContainer.h>
+
+namespace Web::HTML {
+
+// NOTE: This element is marked as obsolete, but is still listed as required by the specification.
+class HTMLFrameElement final : public NavigableContainer {
+    WEB_PLATFORM_OBJECT(HTMLFrameElement, NavigableContainer);
+    JS_DECLARE_ALLOCATOR(HTMLFrameElement);
+
+public:
+    virtual ~HTMLFrameElement() override;
+
+private:
+    HTMLFrameElement(DOM::Document&, DOM::QualifiedName);
+
+    virtual void initialize(JS::Realm&) override;
+
+    // ^DOM::Element
+    virtual void inserted() override;
+    virtual void removed_from(Node*) override;
+    virtual void attribute_changed(FlyString const& name, Optional<String> const& old_value, Optional<String> const& value) override;
+    virtual i32 default_tab_index_value() const override;
+
+    void process_the_frame_attributes(bool initial_insertion = false);
+};
+
+}