tree a4b936c0e80bf12aa498e32ee8867fb12bcaf608
parent 54b10cf89d883d92ff0b5d7c09c986d8b75995b6
author Zhihai Xu <zhihaixu@google.com> 1382140876 -0700
committer Zhihai Xu <zhihaixu@google.com> 1383341053 -0700

3way call is not working with BT

When we receive AT+CHLD=1,
we will call answerAndEndActive
which will Answers the incoming call specified by "ringing",
and ends the currently active phone call,
In this case, hanging up the active call also accepts the waiting call
in hangupActiveCall.
But ringing.isRinging() is still true,
because it take some time to change state for ringing call.
we should wait for finishing disconnecting
before check the ringing call state.
bug:10234670

Change-Id: I69031443d25303e387dd94caf79d73974e23f86a