Update harfbuzz-ng to 0.9.17

third_party/harfbuzz-ng/src/hb-ot-layout.cc

 /*
  * Copyright © 1998-2004  David Turner and Werner Lemberg
  * Copyright © 2006  Behdad Esfahbod
  * Copyright © 2007,2008,2009  Red Hat, Inc.
  * Copyright © 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
@@ skipping 52 matching lines @@
   layout->gpos_digests = (hb_set_digest_t *) calloc (layout->gpos->get_lookup_count (), sizeof (hb_set_digest_t));
 
   if (unlikely ((layout->gsub_lookup_count && !layout->gsub_digests) ||
                 (layout->gpos_lookup_count && !layout->gpos_digests)))
   {
     _hb_ot_layout_destroy (layout);
     return NULL;
   }
 
   for (unsigned int i = 0; i < layout->gsub_lookup_count; i++)
+  {
+    layout->gsub_digests[i].init ();
     layout->gsub->get_lookup (i).add_coverage (&layout->gsub_digests[i]);
+  }
   for (unsigned int i = 0; i < layout->gpos_lookup_count; i++)
+  {
+    layout->gpos_digests[i].init ();
     layout->gpos->get_lookup (i).add_coverage (&layout->gpos_digests[i]);
+  }
 
   return layout;
 }
 
 void
 _hb_ot_layout_destroy (hb_ot_layout_t *layout)
 {
   hb_blob_destroy (layout->gdef_blob);
   hb_blob_destroy (layout->gsub_blob);
   hb_blob_destroy (layout->gpos_blob);
@@ skipping 685 matching lines @@
 #define PARAM(a, A) if (a) *a = 0
   PARAM (design_size, designSize);
   PARAM (subfamily_id, subfamilyID);
   PARAM (subfamily_name_id, subfamilyNameID);
   PARAM (range_start, rangeStart);
   PARAM (range_end, rangeEnd);
 #undef PARAM
 
   return false;
 }