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

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

+/*
+ * Copyright (C) 2010  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_BLOB_PRIVATE_H
+#define HB_BLOB_PRIVATE_H
+
+#include "hb-private.h"
+
+#include "hb-blob.h"
+
+HB_BEGIN_DECLS
+
+
+struct _hb_blob_t {
+  hb_reference_count_t ref_count;
+
+  unsigned int length;
+
+  hb_mutex_t lock;
+  /* the rest are protected by lock */
+
+  unsigned int lock_count;
+  hb_memory_mode_t mode;
+
+  const char *data;
+
+  hb_destroy_func_t destroy;
+  void *user_data;
+};
+
+extern HB_INTERNAL hb_blob_t _hb_blob_nil;
+
+
+HB_END_DECLS
+
+#endif /* HB_BLOB_PRIVATE_H */