[pathkit] Eliminate compile warnings

Minor code changes to eliminate compile warnings.

Change-Id: I944c0a52c062a0268dcd0a49c9d1e35178f49582
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/710656
Commit-Queue: Chris Mumford <cmumford@google.com>
Reviewed-by: Kevin Lubick <kjlubick@google.com>
1 file changed