Updated scope to int mapping

Change-Id: Ib58a48b8df5fb484c55cafbd3d99eafab6353dc1
Reviewed-on: https://weave-review.googlesource.com/1869
Reviewed-by: Vitaly Buka <vitalybuka@google.com>
Reviewed-by: Alex Vakulenko <avakulenko@google.com>