oops, forgot to set hinting on font

Bug: skia:
Change-Id: I825ecd929a60a450eb179600c4b0b81bda3aaec6
Reviewed-on: https://skia-review.googlesource.com/c/185541
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
Auto-Submit: Mike Reed <reed@google.com>