PaintScrollbarThumb  175 ui/native_theme/native_theme_aura.cc void NativeThemeAura::PaintScrollbarThumb(SkCanvas* sk_canvas,
PaintScrollbarThumb  417 ui/native_theme/native_theme_base.cc void NativeThemeBase::PaintScrollbarThumb(SkCanvas* canvas,
PaintScrollbarThumb 1210 ui/native_theme/native_theme_win.cc HRESULT NativeThemeWin::PaintScrollbarThumb(