Check in jsoncpp.

Check in ab1e40f3bce061ea6f9bdc60351d6cde2a4f872b from
https://chromium.googlesource.com/external/jsoncpp/jsoncpp.git

This is the version used by Skia's test suite.

BUG:15087860

Change-Id: I16bf6ac927fa025b6527b48221d749484e1a04f4
diff --git a/include/json/autolink.h b/include/json/autolink.h
new file mode 100644
index 0000000..02328d1
--- /dev/null
+++ b/include/json/autolink.h
@@ -0,0 +1,24 @@
+// Copyright 2007-2010 Baptiste Lepilleur
+// Distributed under MIT license, or public domain if desired and
+// recognized in your jurisdiction.
+// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
+
+#ifndef JSON_AUTOLINK_H_INCLUDED
+# define JSON_AUTOLINK_H_INCLUDED
+
+# include "config.h"
+
+# ifdef JSON_IN_CPPTL
+#  include <cpptl/cpptl_autolink.h>
+# endif
+
+# if !defined(JSON_NO_AUTOLINK)  &&  !defined(JSON_DLL_BUILD)  &&  !defined(JSON_IN_CPPTL)
+#  define CPPTL_AUTOLINK_NAME "json"
+#  undef CPPTL_AUTOLINK_DLL
+#  ifdef JSON_DLL
+#   define CPPTL_AUTOLINK_DLL
+#  endif
+#  include "autolink.h"
+# endif
+
+#endif // JSON_AUTOLINK_H_INCLUDED