Add an "allPathsVolatile" option for testing

Bug: skia:10419
Change-Id: I4bb2dc515448d8c87329ade90d24bf78ca1d7938
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/319097
Reviewed-by: Mike Reed <reed@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
6 files changed