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/Namespace.h

@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2020, the SerenityOS developers.
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <AK/Error.h>
+#include <AK/FlyString.h>
+
+namespace Web::Namespace {
+
+#define ENUMERATE_NAMESPACES                                            \
+    __ENUMERATE_NAMESPACE(HTML, "http://www.w3.org/1999/xhtml")         \
+    __ENUMERATE_NAMESPACE(MathML, "http://www.w3.org/1998/Math/MathML") \
+    __ENUMERATE_NAMESPACE(SVG, "http://www.w3.org/2000/svg")            \
+    __ENUMERATE_NAMESPACE(XLink, "http://www.w3.org/1999/xlink")        \
+    __ENUMERATE_NAMESPACE(XML, "http://www.w3.org/XML/1998/namespace")  \
+    __ENUMERATE_NAMESPACE(XMLNS, "http://www.w3.org/2000/xmlns/")
+
+#define __ENUMERATE_NAMESPACE(name, namespace_) extern FlyString name;
+ENUMERATE_NAMESPACES
+#undef __ENUMERATE_NAMESPACE
+
+void initialize_strings();
+
+}