Revert "Revert "reimpl parts of arctTo using doubles to handle shallow angles""

This reverts commit bc525d65a1f855d1badee8d95d84fa00c2b34372.

Change-Id: I92550317784be4084412d855cf475b77cd36d6da
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/227059
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Mike Reed <reed@google.com>
4 files changed