Make unit test tickle msan bug.

Tested using MSAN with image clearing code
removed.

Change-Id: Ic863328c868887455bb92650d3fdcecbf4d2b1cf
Reviewed-on: https://skia-review.googlesource.com/86761
Commit-Queue: Herb Derby <herb@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>
Reviewed-by: Mike Klein <mtklein@chromium.org>
1 file changed