mustDiscardMarginBefore  964 Source/core/rendering/RenderBlockFlow.cpp     m_discardMargin = m_canCollapseMarginBeforeWithChildren && blockFlow->mustDiscardMarginBefore();
mustDiscardMarginBefore  966 Source/core/rendering/RenderBlockFlow.cpp     m_positiveMargin = (m_canCollapseMarginBeforeWithChildren && !blockFlow->mustDiscardMarginBefore()) ? blockFlow->maxPositiveMarginBefore() : LayoutUnit();
mustDiscardMarginBefore  967 Source/core/rendering/RenderBlockFlow.cpp     m_negativeMargin = (m_canCollapseMarginBeforeWithChildren && !blockFlow->mustDiscardMarginBefore()) ? blockFlow->maxNegativeMarginBefore() : LayoutUnit();
mustDiscardMarginBefore 1532 Source/core/rendering/RenderBlockFlow.cpp         return child->isRenderBlockFlow() ? toRenderBlockFlow(child)->mustDiscardMarginBefore() : (child->style()->marginBeforeCollapse() == MDISCARD);
mustDiscardMarginBefore 1547 Source/core/rendering/RenderBlockFlow.cpp         return child->isRenderBlockFlow() ? toRenderBlockFlow(child)->mustDiscardMarginBefore() : (child->style()->marginBeforeCollapse() == MDISCARD);
mustDiscardMarginBefore  402 Source/core/rendering/RenderBlockFlow.h     bool mustDiscardMarginBefore() const;