Roll HarfBuzz to 1.2.1

third_party/harfbuzz-ng/src/hb-common.cc

 /*
  * Copyright © 2009,2010  Red Hat, Inc.
  * Copyright © 2011,2012  Google, 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
@@ skipping 522 matching lines @@
   }
   hb_user_data_item_t item = {key, data, destroy};
   bool ret = !!items.replace_or_insert (item, lock, (bool) replace);
 
   return ret;
 }
 
 void *
 hb_user_data_array_t::get (hb_user_data_key_t *key)
 {
-  hb_user_data_item_t item = {NULL };
+  hb_user_data_item_t item = {NULL, NULL, NULL};
 
   return items.find (key, &item, lock) ? item.data : NULL;
 }
 
 
 /* hb_version */
 
 /**
  * hb_version:
  * @major: (out): Library major version component.
@@ skipping 41 matching lines @@
  *
  * Since: 0.9.30
  **/
 hb_bool_t
 hb_version_atleast (unsigned int major,
                     unsigned int minor,
                     unsigned int micro)
 {
   return HB_VERSION_ATLEAST (major, minor, micro);
 }