Use a disk snapshot already prepopulated with SKPs for SkiaCT bots
Use a disk snapshot already prepopulated with SKPs for SkiaCT bots

BUG=skia:6611

Change-Id: I797dc1570a99b824a2b6207ea014bc8341a80bdf
Reviewed-on: https://skia-review.googlesource.com/20442
Reviewed-by: Eric Boren <0e499112533c8544f0505ea0d08394fb5ad7d8fa@google.com>
Commit-Queue: Ravi Mistry <9fa2e7438b8cb730f96b74865492597170561628@google.com>

google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot