Skip to next run on invalid scale

If the max scale of the run is <=0, then skip
to the next run.

Bug: oss-fuzz:56120
Change-Id: Idf2298538ffcbdfd9d10b9cdb605fc778e0c93e1
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/646657
Commit-Queue: Herb Derby <herb@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
1 file changed