Use beast::string_view alias

include/beast/core/string_view.hpp

@@ -0,0 +1,25 @@
+//
+// Copyright (c) 2013-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef BEAST_STRING_VIEW_HPP
+#define BEAST_STRING_VIEW_HPP
+
+#include <boost/utility/string_ref.hpp>
+
+namespace beast {
+
+/// The type of string_view used by the library
+using string_view = boost::string_ref;
+
+/// The type of basic_string_view used by the library
+template<class CharT, class Traits>
+using basic_string_view =
+    boost::basic_string_ref<CharT, Traits>;
+
+} // beast
+
+#endif