Reduce stack usage for tests.

TBR=mtklein@google.com

Change-Id: Id7621548995b368164d74c817e288c34ef656bfb
Reviewed-on: https://skia-review.googlesource.com/8180
Reviewed-by: Herb Derby <herb@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Herb Derby <herb@google.com>
2 files changed