setBefore 307 Source/core/rendering/RenderBox.h void setMarginBefore(LayoutUnit value, const RenderStyle* overrideStyle = 0) { m_marginBox.setBefore((overrideStyle ? overrideStyle : style())->writingMode(), value); } setBefore 67 Source/platform/geometry/LayoutBoxExtent.h void setBefore(WritingMode, LayoutUnit);