tree b39647c8c88f09a0294f0f8173b91fa14a790bdb
parent 57b128d35eb11abeeab63b083400f2c268d68c72
author lifr <lifr@google.com> 1564082263 +0800
committer Luke Huang <huangluke@google.com> 1564084471 +0800

Restore the PrivateDnsMode emun to its original definition

Westworld requires the first field of all enums to be set to
UNKNOWN/UNSET, but this is awkward for the resolver code and
makes it hard to verify whether we have any PrivateDnsMode
variables initialized to UNKNOWN by accident.

So revert this change, and add a simple function to convert
the internal PrivateDnsMode enum to the other PrivateDnsMode
emun defined in the stats proto.

Bug: 119862317
Test: atest
Change-Id: Id146a16e41e0183867b3a4e2d87a2b0fc09df27d