hasLayerForVerticalScrollbar 510 Source/platform/scroll/ScrollView.cpp int verticalScrollbarWidth = (verticalScrollbar() && !hasLayerForVerticalScrollbar()) ? verticalScrollbar()->width() : 0; hasLayerForVerticalScrollbar 192 Source/platform/scroll/ScrollableArea.cpp if (verticalScrollbar->isOverlayScrollbar() && !hasLayerForVerticalScrollbar()) hasLayerForVerticalScrollbar 224 Source/platform/scroll/ScrollableArea.h bool hasLayerForVerticalScrollbar() const;