byte code instructions can fit in a byte

This isn't particularly important.  It just struck me that if we're
going to be byte-thrifty, might as well go all the way.

Change-Id: I4d137731ac06643c50e6bc66cc4654abad732cea
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/310325
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
4 files changed