Check font arguments when determining whether text styles have the same font

Change-Id: Ib8289d9ece43781e61db2a3ed080dedef296e539
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/525738
Reviewed-by: Julia Lavrova <jlavrova@google.com>
Commit-Queue: Jason Simmons <jsimmons@google.com>
1 file changed