tree 7ad31b4039ec4267df816b130601803ab87baa8a
parent 05b5e8912f5dbf357c123665be8944caf043a4e8
author erfanian <erfanian@google.com> 1516896013 -0800
committer Copybara-Service <copybara-piper@google.com> 1516896081 -0800

Reset invalid selected countries to the default value.

In some cases, we may revoke countries or make them
otherwise unavailable to assisted dialing.

In this case, we reset the preference back the the
default value, which is always the zeroth value.
Bug: 72322367
Test: new unit test
PiperOrigin-RevId: 183238476
Change-Id: Ib5cf200f6da04e332b6248b04057d5de0f64d01f