Handle no stash case

Bug: skia:
Change-Id: Ie717f92306d32303cb2efcfe5809bb4d81ae80e0
Reviewed-on: https://skia-review.googlesource.com/60223
Reviewed-by: Eric Boren <borenet@google.com>
Commit-Queue: Yuqian Li <liyuqian@google.com>
1 file changed