tiny line breaks gl render

This pie cut draws correctly
on raster but extends to the
right on Ganesh.

The path is not convex, and
has a tiny line that contributes
to the error.

TBR=robertphillips@google.com
BUG=640176
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2276083002

Review-Url: https://codereview.chromium.org/2276083002
1 file changed