+ Avoid concurrent modification when forming >3-way conf call. + Revise SipConnection.separate() to put the newly separated call to foreground. Bug: 3114987 Change-Id: If6204e7e3cc05f4a516c33657a368b53a0ad014d
+ Avoid concurrent modification when forming >3-way conf call. + Revise SipConnection.separate() to put the newly separated call to foreground. Bug: 3114987 Change-Id: If6204e7e3cc05f4a516c33657a368b53a0ad014d