[benchmark_font/draw_glyphs] Implement quadratic_to

Not interested in the fallback implementation here.

perf/benchmark-font.cc

@@ -50,8 +50,8 @@ _hb_move_to (hb_draw_funcs_t *, void *, hb_draw_state_t *, float, float, void *)
 static void
 _hb_line_to (hb_draw_funcs_t *, void *, hb_draw_state_t *, float, float, void *) {}
 
-//static void
-//_hb_quadratic_to (hb_draw_funcs_t *, void *, hb_draw_state_t *, float, float, float, float, void *) {}
+static void
+_hb_quadratic_to (hb_draw_funcs_t *, void *, hb_draw_state_t *, float, float, float, float, void *) {}
 
 static void
 _hb_cubic_to (hb_draw_funcs_t *, void *, hb_draw_state_t *, float, float, float, float, float, float, void *) {}
@@ -65,7 +65,7 @@ _draw_funcs_create (void)
   hb_draw_funcs_t *draw_funcs = hb_draw_funcs_create ();
   hb_draw_funcs_set_move_to_func (draw_funcs, _hb_move_to, nullptr, nullptr);
   hb_draw_funcs_set_line_to_func (draw_funcs, _hb_line_to, nullptr, nullptr);
-  //hb_draw_funcs_set_quadratic_to_func (draw_funcs, _hb_quadratic_to, nullptr, nullptr);
+  hb_draw_funcs_set_quadratic_to_func (draw_funcs, _hb_quadratic_to, nullptr, nullptr);
   hb_draw_funcs_set_cubic_to_func (draw_funcs, _hb_cubic_to, nullptr, nullptr);
   hb_draw_funcs_set_close_path_func (draw_funcs, _hb_close_path, nullptr, nullptr);
   return draw_funcs;