Dan Field 77c7096efb Reland path volatility tracker (flutter/engine#23063)
* Revert "Revert "Set SkPath::setIsVolatile based on whether the path survives at least two frames (#22620)" (#23044)"

This reverts commit feda80cb42f99e2588a9a6b9ab3dd1f812d0f45b.

* Fix tracing
2020-12-14 17:21:55 -08:00
..