Make sure we are getting the correct atlas for glyph mask format.

Bug: b/491421267
Bug: b/491789011
Change-Id: I4eacd46599eca2df8c10a3fc894b9ce890fae1e2
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/1184076
Commit-Queue: Greg Daniel <egdaniel@google.com>
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/1188237
16 files changed