This is actually just needed for the infra repo, but that doesn't have
any of the mechanisms for creating assets, so it's simpler to do that
here.
NOTRY=true
Bug: skia:6866
Change-Id: I5d9810fc7440703090b55b13d06b39f92e85f172
Reviewed-on: https://skia-review.googlesource.com/24680
Commit-Queue: Eric Boren <borenet@google.com>
Reviewed-by: Ravi Mistry <rmistry@google.com>
