Baseline for empty text

Change-Id: I7c172bfb8f35f684030489f75cd997acdbbe3a75
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/220298
Commit-Queue: Julia Lavrova <jlavrova@google.com>
Reviewed-by: Herb Derby <herb@google.com>
3 files changed