hasThumb           63 Source/core/rendering/RenderScrollbarTheme.cpp bool RenderScrollbarTheme::hasThumb(ScrollbarThemeClient* scrollbar)
hasThumb           83 Source/platform/exported/WebScrollbarThemeGeometryNative.cpp bool WebScrollbarThemeGeometryNative::hasThumb(WebScrollbar* scrollbar)
hasThumb           37 Source/platform/scroll/ScrollbarThemeNonMacCommon.cpp bool ScrollbarThemeNonMacCommon::hasThumb(ScrollbarThemeClient* scrollbar)
hasThumb           95 Source/platform/scroll/ScrollbarThemeOverlay.cpp bool ScrollbarThemeOverlay::hasThumb(ScrollbarThemeClient* scrollbar)