Merge "Fix trackpad check" into udc-qpr-dev

    private boolean isButtonPressFromTrackpad(MotionEvent ev) {

        // We don't allow back for button press from the trackpad, and yet we do with a mouse.

        int sources = InputManager.getInstance().getInputDevice(ev.getDeviceId()).getSources();

        return (sources & (SOURCE_MOUSE | SOURCE_TOUCHPAD)) == sources && ev.getButtonState() != 0;

        int sourceTrackpad = (SOURCE_MOUSE | SOURCE_TOUCHPAD);

        return (sources & sourceTrackpad) == sourceTrackpad && ev.getButtonState() != 0;

    }

    private void dispatchToBackAnimation(MotionEvent event) {