recalculateScrollbarOverlayStyle 1980 Source/core/frame/FrameView.cpp     recalculateScrollbarOverlayStyle();
recalculateScrollbarOverlayStyle  125 Source/core/frame/FrameView.h     virtual void recalculateScrollbarOverlayStyle();
recalculateScrollbarOverlayStyle  223 Source/core/rendering/RenderBox.cpp         document().view()->recalculateScrollbarOverlayStyle();