FuzzDrawFunctions from twsmith

BUG=skia:

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4979

Change-Id: Ib5cc6ea036538b611d6959c679a276050e145f57
Reviewed-on: https://skia-review.googlesource.com/4979
Reviewed-by: Mike Klein <mtklein@chromium.org>
2 files changed