[skottie] Render DM frames out-of-order

To exercise non-monotonic animator progrssions.

TBR=

Change-Id: I53aead5b11adf59d33c9ca4065976996bd09a1e2
Reviewed-on: https://skia-review.googlesource.com/100900
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Florin Malita <fmalita@chromium.org>
1 file changed