Roll HarfBuzz to 1.2.1

third_party/harfbuzz-ng/src/hb-ot-layout-gsubgpos-private.hh

 /*
  * Copyright © 2007,2008,2009,2010  Red Hat, Inc.
  * Copyright © 2010,2012  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 953 matching lines @@
   {
     unsigned int bl = buffer->backtrack_len ();
     end = bl + match_length;
 
     int delta = bl - buffer->idx;
     /* Convert positions to new indexing. */
     for (unsigned int j = 0; j < count; j++)
       match_positions[j] += delta;
   }
 
-  for (unsigned int i = 0; i < lookupCount; i++)
+  for (unsigned int i = 0; i < lookupCount && !buffer->in_error; i++)
   {
     unsigned int idx = lookupRecord[i].sequenceIndex;
     if (idx >= count)
       continue;
 
     /* Don't recurse to ourself at same position.
      * Note that this test is too naive, it doesn't catch longer loops. */
     if (idx == 0 && lookupRecord[i].lookupListIndex == c->lookup_index)
       continue;
 
@@ skipping 1285 matching lines @@
   {
     TRACE_SANITIZE (this);
     return_trace (version.sanitize (c) &&
                   likely (version.major == 1) &&
                   scriptList.sanitize (c, this) &&
                   featureList.sanitize (c, this) &&
                   lookupList.sanitize (c, this));
   }
 
   protected:
-  FixedVersion  version;        /* Version of the GSUB/GPOS table--initially set
+  FixedVersion<>version;        /* Version of the GSUB/GPOS table--initially set
                                  * to 0x00010000u */
   OffsetTo<ScriptList>
                 scriptList;     /* ScriptList table */
   OffsetTo<FeatureList>
                 featureList;    /* FeatureList table */
   OffsetTo<LookupList>
                 lookupList;     /* LookupList table */
   public:
   DEFINE_SIZE_STATIC (10);
 };
 
 
 } /* namespace OT */
 
 
 #endif /* HB_OT_LAYOUT_GSUBGPOS_PRIVATE_HH */