Use new faster PathIter in AAHairlineRenderer

- client checks for degenerate close-line (old iter used to do this)

PreCL: https://skia-review.googlesource.com/c/skia/+/1041696

Change-Id: Ic38a4bd084c638329ac4c8cbfe3caa616bb94175
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/1041637
Reviewed-by: Florin Malita <fmalita@google.com>
Commit-Queue: Mike Reed <mike@reedtribe.org>
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
1 file changed