Make enum values explicit

For clients like chrome that want to rely on the numeric values

Change-Id: Ib8ecf2e404b159ff26e44d41bd60f98609ff3ad0
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/372976
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
1 file changed