Handle new colortype

Follow-up to https://skia-review.googlesource.com/c/skia/+/750976

Change-Id: If44052a46d00b7251ce571068430ca4511940a91
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/754896
Auto-Submit: Kevin Lubick <kjlubick@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
1 file changed