Fix multiplication of maxIterations in PolyUtils

Bug: oss-fuzz:11546
Change-Id: Icb08cfeb685d3992d99df8f98336093a79295ed0
Reviewed-on: https://skia-review.googlesource.com/c/172869
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Commit-Queue: Kevin Lubick <kjlubick@google.com>
1 file changed