GM was updated in:
https://skia-review.googlesource.com/c/skia/+/300172 (Make GM::onGpuSetup take a GrDirectContext)
This CL updates: skpbench, nanobench, and some testing infrastructure.
Only minor changes were made to the unit tests as they will be updated
en masse in a follow up cl.
Change-Id: Ieffc98865d4c9fc73e292d3c807ed4ae2081745a
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/300220
Reviewed-by: Adlai Holler <adlai@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
