UpDownState oldUpDownState = m_upDownState;
m_upDownState = (local.y() < box->height() / 2) ? Up : Down;
if (m_upDownState != oldUpDownState)
- renderer()->setShouldDoFullPaintInvalidation(true);
+ renderer()->setShouldDoFullPaintInvalidation();
} else {
releaseCapture();
m_upDownState = Indeterminate;