Merge "Fix NPE in DialerCall that cause it crash and failed to show disconnection error message."

    int newRoute;

    if (audioState.getRoute() == CallAudioState.ROUTE_SPEAKER) {

      newRoute = CallAudioState.ROUTE_WIRED_OR_EARPIECE;

      if (call != null) {

        Logger.get(context)

                .logCallImpression(

                        DialerImpression.Type.IN_CALL_SCREEN_TURN_ON_WIRED_OR_EARPIECE,

                        call.getUniqueCallId(),

                        call.getTimeAddedMs());

      }

    } else {

      newRoute = CallAudioState.ROUTE_SPEAKER;

      if (call != null) {

        Logger.get(context)

                .logCallImpression(

                        DialerImpression.Type.IN_CALL_SCREEN_TURN_ON_SPEAKERPHONE,

                        call.getUniqueCallId(),

                        call.getTimeAddedMs());

      }

    }

    setAudioRoute(newRoute);

  }