Current limitations:
-- single-line only (no paragraph box support)
-- "Force Alignment" not supported
-- tracking animators not supported
Change-Id: I4072f1d8280032787c6db7e8b47d6f55be43bddb
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/456237
Commit-Queue: Florin Malita <fmalita@google.com>
Reviewed-by: Mike Reed <reed@google.com>
Reviewed-by: Ben Wagner <bungeman@google.com>
