Roll harfbuzz-ng to 1.0.5

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

Index: third_party/harfbuzz-ng/src/hb-font.h
diff --git a/third_party/harfbuzz-ng/src/hb-font.h b/third_party/harfbuzz-ng/src/hb-font.h
index cf22589ec65531c816840f841a4ccbfd5f2e3237..fb4a0eab5a99f53fd0fb683be13c0f1c9d2cdaa7 100644
--- a/third_party/harfbuzz-ng/src/hb-font.h
+++ b/third_party/harfbuzz-ng/src/hb-font.h
@@ -80,12 +80,13 @@ hb_font_funcs_is_immutable (hb_font_funcs_t *ffuncs);
 
 /* glyph extents */
 
+/* Note that height is negative in coordinate systems that grow up. */
 typedef struct hb_glyph_extents_t
 {
-  hb_position_t x_bearing;
-  hb_position_t y_bearing;
-  hb_position_t width;
-  hb_position_t height;
+  hb_position_t x_bearing; /* left side of glyph from origin. */
+  hb_position_t y_bearing; /* top side of glyph from origin. */
+  hb_position_t width; /* distance from left to right side. */
+  hb_position_t height; /* distance from top to bottom side. */
 } hb_glyph_extents_t;
 
 
@@ -148,7 +149,7 @@ typedef hb_bool_t (*hb_font_get_glyph_from_name_func_t) (hb_font_t *font, void *
  *
  * 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 void
 hb_font_funcs_set_glyph_func (hb_font_funcs_t *ffuncs,
@@ -164,7 +165,7 @@ hb_font_funcs_set_glyph_func (hb_font_funcs_t *ffuncs,
  *
  * 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 void
 hb_font_funcs_set_glyph_h_advance_func (hb_font_funcs_t *ffuncs,
@@ -180,7 +181,7 @@ hb_font_funcs_set_glyph_h_advance_func (hb_font_funcs_t *ffuncs,
  *
  * 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 void
 hb_font_funcs_set_glyph_v_advance_func (hb_font_funcs_t *ffuncs,
@@ -196,7 +197,7 @@ hb_font_funcs_set_glyph_v_advance_func (hb_font_funcs_t *ffuncs,
  *
  * 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 void
 hb_font_funcs_set_glyph_h_origin_func (hb_font_funcs_t *ffuncs,
@@ -212,7 +213,7 @@ hb_font_funcs_set_glyph_h_origin_func (hb_font_funcs_t *ffuncs,
  *
  * 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 void
 hb_font_funcs_set_glyph_v_origin_func (hb_font_funcs_t *ffuncs,
@@ -228,7 +229,7 @@ hb_font_funcs_set_glyph_v_origin_func (hb_font_funcs_t *ffuncs,
  *
  * 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 void
 hb_font_funcs_set_glyph_h_kerning_func (hb_font_funcs_t *ffuncs,
@@ -244,7 +245,7 @@ hb_font_funcs_set_glyph_h_kerning_func (hb_font_funcs_t *ffuncs,
  *
  * 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 void
 hb_font_funcs_set_glyph_v_kerning_func (hb_font_funcs_t *ffuncs,
@@ -260,7 +261,7 @@ hb_font_funcs_set_glyph_v_kerning_func (hb_font_funcs_t *ffuncs,
  *
  * 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 void
 hb_font_funcs_set_glyph_extents_func (hb_font_funcs_t *ffuncs,
@@ -276,7 +277,7 @@ hb_font_funcs_set_glyph_extents_func (hb_font_funcs_t *ffuncs,
  *
  * 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 void
 hb_font_funcs_set_glyph_contour_point_func (hb_font_funcs_t *ffuncs,
@@ -458,6 +459,10 @@ hb_font_make_immutable (hb_font_t *font);
 hb_bool_t
 hb_font_is_immutable (hb_font_t *font);
 
+void
+hb_font_set_parent (hb_font_t *font,
+		    hb_font_t *parent);
+
 hb_font_t *
 hb_font_get_parent (hb_font_t *font);