SkQP: download_model complains when files.checksum is missing

No-Try: true
Change-Id: I4fad015181f15e4ffb9c9607723a1313a041621b
Reviewed-on: https://skia-review.googlesource.com/103763
Reviewed-by: Stephan Altmueller <stephana@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
(cherry picked from commit 703d9c47a8f3e47514eaefeb4939bc02004fef5e)
Reviewed-on: https://skia-review.googlesource.com/106541
Reviewed-by: Derek Sollenberger <djsollen@google.com>
1 file changed