harfbuzz: check in harfbuzz-ng, add gyp define to use it

third_party/harfbuzz-ng/src/hb-unicode-private.h

Index: third_party/harfbuzz-ng/src/hb-unicode-private.h
diff --git a/third_party/harfbuzz-ng/src/hb-unicode-private.h b/third_party/harfbuzz-ng/src/hb-unicode-private.h
new file mode 100644
index 0000000000000000000000000000000000000000..419404b8799b4d7746fda385e98ce11fdb27306d
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+++ b/third_party/harfbuzz-ng/src/hb-unicode-private.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2009  Red Hat, Inc.
+ *
+ *  This is part of HarfBuzz, a text shaping library.
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and its documentation for any purpose, provided that the
+ * above copyright notice and the following two paragraphs appear in
+ * all copies of this software.
+ *
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
+ * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
+ * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ * Red Hat Author(s): Behdad Esfahbod
+ */
+
+#ifndef HB_UNICODE_PRIVATE_H
+#define HB_UNICODE_PRIVATE_H
+
+#include "hb-private.h"
+
+#include "hb-unicode.h"
+
+HB_BEGIN_DECLS
+
+
+/*
+ * hb_unicode_funcs_t
+ */
+
+struct _hb_unicode_funcs_t {
+  hb_reference_count_t ref_count;
+
+  hb_bool_t immutable;
+
+  struct {
+    hb_unicode_get_general_category_func_t	get_general_category;
+    hb_unicode_get_combining_class_func_t	get_combining_class;
+    hb_unicode_get_mirroring_func_t		get_mirroring;
+    hb_unicode_get_script_func_t		get_script;
+    hb_unicode_get_eastasian_width_func_t	get_eastasian_width;
+  } v;
+};
+
+extern HB_INTERNAL hb_unicode_funcs_t _hb_unicode_funcs_nil;
+
+
+HB_INTERNAL hb_direction_t
+_hb_script_get_horizontal_direction (hb_script_t script);
+
+
+HB_END_DECLS
+
+#endif /* HB_UNICODE_PRIVATE_H */