commit 2a5483ff777f3a5f8ec8853cbc4270a147aeb2c3
author chen xu <fionaxu@google.com> Mon Apr 29 13:57:42 2019 -0700
committer Nathan Harold <nharold@google.com> Mon May 13 21:38:12 2019 -0700
tree de80fec188b73d3de189ab43af83fc112f22a904
parent d274cc61fc437d48d8555d44787ac66c9897b0b9

PhoneStateListener msim improvement

1. Docuemnt the scope of each callback event either apply to specific
subscriptions or not.
2. TelephonyRegistry store separate state e.g, precisecallstate, callAttribute
for each slot to support msim.
3. Add missing subscription match check when notify callbacks.

Bug: 130423985
Bug: 132181378
Test:  atest CtsTelephonyTestCases:PhoneStateListenerTest
Merged-In: I4b014e00528a1f05e0b5f237229c561f8260e2bd
Change-Id: I4b014e00528a1f05e0b5f237229c561f8260e2bd
(cherry picked from commit d5deeb15e9eae9b14deede4f89ac14c69430f25b)