Use base::size rather than arraysize in mash/.

This is purely a mechanical change; there is no intended behavior change.

BUG=837308
TBR=msw@chromium.org

Change-Id: Ib0ee334f7083b3dce276eebfa1f5f95e202e2ad9
Reviewed-on: https://chromium-review.googlesource.com/c/1390723
Reviewed-by: Avi Drissman <avi@chromium.org>
Commit-Queue: Avi Drissman <avi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#618866}
1 file changed