Merge "AudioTrack: Skip callback EVENT_STREAM_END on DEAD_OBJECT."

        case NO_ERROR:

        case DEAD_OBJECT:

        case TIMED_OUT:

            if (status != DEAD_OBJECT) {

                // for DEAD_OBJECT, we do not send a EVENT_STREAM_END after stop();

                // instead, the application should handle the EVENT_NEW_IAUDIOTRACK.

                mCbf(EVENT_STREAM_END, mUserData, NULL);

            }

            {

                AutoMutex lock(mLock);

                // The previously assigned value of waitStreamEnd is no longer valid,