requiresHorizontalScrollbarLayer 470 Source/core/rendering/compositing/CompositedLayerMapping.cpp if (updateOverflowControlsLayers(requiresHorizontalScrollbarLayer(), requiresVerticalScrollbarLayer(), requiresScrollCornerLayer())) requiresHorizontalScrollbarLayer 220 Source/core/rendering/compositing/CompositedLayerMapping.h bool requiresHorizontalScrollbarLayer() const { return m_owningLayer.scrollableArea() && m_owningLayer.scrollableArea()->horizontalScrollbar(); } requiresHorizontalScrollbarLayer 1781 Source/core/rendering/compositing/RenderLayerCompositor.cpp if (requiresHorizontalScrollbarLayer()) { requiresHorizontalScrollbarLayer 300 Source/core/rendering/compositing/RenderLayerCompositor.h bool requiresHorizontalScrollbarLayer() const;