pathops: Split loop type cubics only when there is a self-intersection.

The ComplexBreak code comes from Loop and Blinn, which requires loops to be
split if either double point is visible.  However for intersection loops only
need to be split when there is actually a self-intersection (when both double
points are in [0, 1]).  This patch splits cubics much less often so the output
doesn't have extra segments unless the input had a self-intersecting loop.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1920663002

Review URL: https://codereview.chromium.org/1920663002

0 files changed, 0 insertions, 0 deletions