Protect add connections in CdmaConferenceController by a synchronized
pending set.
It's possible that we add same connections to CdmaConferenceController
for multiple times. Some of them can pass the duplication check and
cause unexpected conference connection creation. Protect the addInternal
with a synchronized set, only connections can be successfully added to
this set can be added to the controller.
Bug: 185315467
Test: Manually emergency call test
Change-Id: I669632ce3cce7b381ded6fd1f56c882bdbc35cba
1 file changed