SkPDF: Use fewer complex PathOps to speed up clipping

Test from bug is 200x faster

Bug: chromium:947381
Change-Id: Ie3fc38d2b39cb8d8fc70d388a25464fcbb1eaa54
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/206166
Auto-Submit: Hal Canary <halcanary@google.com>
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
1 file changed