Roll HarfBuzz to 1.4.6

third_party/harfbuzz-ng/src/hb-font.h

 /*
  * Copyright © 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.
@@ skipping 545 matching lines @@
 HB_EXTERN hb_bool_t
 hb_font_is_immutable (hb_font_t *font);
 
 HB_EXTERN void
 hb_font_set_parent (hb_font_t *font,
                     hb_font_t *parent);
 
 HB_EXTERN hb_font_t *
 hb_font_get_parent (hb_font_t *font);
 
+HB_EXTERN void
+hb_font_set_face (hb_font_t *font,
+                  hb_face_t *face);
+
 HB_EXTERN hb_face_t *
 hb_font_get_face (hb_font_t *font);
 
 
 HB_EXTERN void
 hb_font_set_funcs (hb_font_t         *font,
                    hb_font_funcs_t   *klass,
                    void              *font_data,
                    hb_destroy_func_t  destroy);
 
@@ skipping 42 matching lines @@
                                    const int *coords, /* 2.14 normalized */
                                    unsigned int coords_length);
 
 HB_EXTERN const int *
 hb_font_get_var_coords_normalized (hb_font_t *font,
                                    unsigned int *length);
 
 HB_END_DECLS
 
 #endif /* HB_FONT_H */