tree 09fe859beea049902f17a9edc562ce5179ef647b
parent 61639d9d361558919e2a0ff5b0b6f128a7c08bcf
author Ross Wang <rosswang@google.com> 1460766462 -0700
committer Ross Wang <rosswang@google.com> 1461117692 -0700

TBR: Prepping Firebase for persistence abstraction

Switching from singleton to instantiatable with static configuration. It
turns setAndroidContext is idempotent; setPersistenceEnabled was causing
the exception on rotation, and that should be cheap enough to do in a
static initializer.

Change-Id: I604718c7c54809594157527af9092fa8dd7ab23d