LayoutMultiColumnFlowThread::LayoutMultiColumnFlowThread()
    : m_lastSetWorkedOn(nullptr)
    , m_columnCount(1)
    , m_columnHeightAvailable(0)
    , m_columnHeightsChanged(false)
    , m_progressionIsInline(true)
    , m_isBeingEvacuated(false)
{
    setIsInsideFlowThread(true);
}
LayoutMultiColumnFlowThread::LayoutMultiColumnFlowThread()
    : m_lastSetWorkedOn(nullptr)
    , m_columnCount(1)
    , m_columnHeightAvailable(0)
    , m_inBalancingPass(false)
    , m_needsColumnHeightsRecalculation(false)
    , m_progressionIsInline(true)
    , m_isBeingEvacuated(false)
{
    setIsInsideFlowThread(true);
}