[roll] Manually roll chromeos_proto and switch to main branches

Change-Id: I13a7fe6e1edc51b9c265c2fb9ed20178e67bb2e5
Reviewed-on: https://dart-review.googlesource.com/c/recipes/+/207680
Auto-Submit: Alexander Thomas <athom@google.com>
Reviewed-by: William Hesse <whesse@google.com>
Commit-Queue: Alexander Thomas <athom@google.com>
1 file changed