Roll HarfBuzz to 1.4.1

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

Index: third_party/harfbuzz-ng/src/hb-font.cc
diff --git a/third_party/harfbuzz-ng/src/hb-font.cc b/third_party/harfbuzz-ng/src/hb-font.cc
index 08fcd647588e1f898ae8d5c714c7427357d19e0a..2935c4b4fd11451a0b546d4a0d8663a0b4538434 100644
--- a/third_party/harfbuzz-ng/src/hb-font.cc
+++ b/third_party/harfbuzz-ng/src/hb-font.cc
@@ -1165,6 +1165,8 @@ hb_font_create_sub_font (hb_font_t *parent)
   font->x_ppem = parent->x_ppem;
   font->y_ppem = parent->y_ppem;
 
+  /* TODO: copy variation coordinates. */
+
   return font;
 }
 
@@ -1194,6 +1196,9 @@ hb_font_get_empty (void)
     0, /* x_ppem */
     0, /* y_ppem */
 
+    0, /* num_coords */
+    NULL, /* coords */
+
     const_cast<hb_font_funcs_t *> (&_hb_font_funcs_nil), /* klass */
     NULL, /* user_data */
     NULL, /* destroy */
@@ -1248,6 +1253,8 @@ hb_font_destroy (hb_font_t *font)
   hb_face_destroy (font->face);
   hb_font_funcs_destroy (font->klass);
 
+  free (font->coords);
+
   free (font);
 }
 
@@ -1537,6 +1544,32 @@ hb_font_get_ppem (hb_font_t *font,
 }
 
 
+void
+hb_font_set_var_coords_normalized (hb_font_t *font,
+				   int *coords, /* XXX 2.14 normalized */
+				   unsigned int coords_length)
+{
+  if (font->immutable)
+    return;
+
+  /* Skip tail zero entries. */
+  while (coords_length && !coords[coords_length - 1])
+    coords_length--;
+
+  int *copy = coords_length ? (int *) calloc (coords_length, sizeof (coords[0])) : NULL;
+  if (unlikely (coords_length && !copy))
+    return;
+
+  free (font->coords);
+
+  if (coords_length)
+    memcpy (copy, coords, coords_length * sizeof (coords[0]));
+
+  font->coords = copy;
+  font->num_coords = coords_length;
+}
+
+
 #ifndef HB_DISABLE_DEPRECATED
 
 /*