Change name of field to permit larger scope

The field is unusued to date (first CL to use it isn't even landed yet), so
no risk of problems from the rename.

Bug: 1022986
Change-Id: Iee44eee10600672d14cb555f2f6ada251316520c
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/infra/proto/+/2006589
Tested-by: Jacob Kopczynski <jkop@chromium.org>
Auto-Submit: Jacob Kopczynski <jkop@chromium.org>
Reviewed-by: Alex Zamorzaev <zamorzaev@chromium.org>
Commit-Queue: Alex Zamorzaev <zamorzaev@chromium.org>
3 files changed