tree 9b4f9783c3257a2a98a8be72d6f12bf76ae94897
parent 6b772309850722b0010f9280ac59ffbc14b75e9a
author Hall Liu <hallliu@google.com> 1525913320 -0700
committer Hall Liu <hallliu@google.com> 1525987202 -0700

Bring Telecom logic into agreement with Bluetooth

Account for the BT active device being null sometimes (and not starting
calls on BT when so)
Follow the BT stack's changes on the BT active device

Fixes: 79231275
Test: unit, manual, BT team's regression suite

Change-Id: Ib6ced6baa9e0ca5fa17b854ae58f19e9d49a80fd