tree fbe991cd5319ec22696857cb0b1df07e404c7c23
parent a174300a842dde0edff31290a14012244e0713d0
author Dave Borowitz <dborowitz@google.com> 1526645482 -0400
committer Dave Borowitz <dborowitz@google.com> 1527085688 -0400

Serialize ConflictsCache as proto

Convert ConflictKey to AutoValue as well. Rewrite the normalization
logic and add comments to make the intent clearer.

Since boolean serialization doesn't support nulls, change the
ConflictsCache interface to use primitive boolean in the put method.
Inspecting the only caller in ConflictsCacheImpl shows that put can
never be called with null.

Change-Id: I293cffba7609362dabb93e48c1929a05cd0c76fc