[skottie] Fix NaN |t| in CompTimeMapper::onTick

Catch infinite time scale values at construction time.

Bug: skia:8381
Change-Id: I538c5bd0a75b080856ec39b3e94e2a303bb9a289
Reviewed-on: https://skia-review.googlesource.com/155167
Commit-Queue: Florin Malita <fmalita@chromium.org>
Commit-Queue: Kevin Lubick <kjlubick@google.com>
Auto-Submit: Florin Malita <fmalita@chromium.org>
Reviewed-by: Kevin Lubick <kjlubick@google.com>
1 file changed