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/Layout/BoxModelMetrics.h

@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2018-2020, Andreas Kling <andreas@ladybird.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <LibGfx/Size.h>
+#include <LibWeb/PixelUnits.h>
+
+namespace Web::Layout {
+
+struct PixelBox {
+    CSSPixels top { 0 };
+    CSSPixels right { 0 };
+    CSSPixels bottom { 0 };
+    CSSPixels left { 0 };
+};
+
+struct BoxModelMetrics {
+public:
+    PixelBox margin;
+    PixelBox padding;
+    PixelBox border;
+    PixelBox inset;
+
+    PixelBox margin_box() const;
+    PixelBox padding_box() const;
+    PixelBox border_box() const;
+};
+
+}