isSliderThumb      92 Source/core/html/shadow/SliderThumbElement.h     virtual bool isSliderThumb() const OVERRIDE;
isSliderThumb     375 Source/core/rendering/RenderObject.h     virtual bool isSliderThumb() const { return false; }
isSliderThumb     100 Source/core/rendering/RenderSlider.cpp     if (thumbBox && thumbBox->isSliderThumb())