Update PathOpSubmitter to use bulk serialization for Points

Change-Id: I2835a65891e826b2468dd133b9d649ce464408e7
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/565911
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Herb Derby <herb@google.com>
1 file changed