PaintScrollbarTrack 162 ui/native_theme/native_theme_aura.cc void NativeThemeAura::PaintScrollbarTrack( PaintScrollbarTrack 396 ui/native_theme/native_theme_base.cc void NativeThemeBase::PaintScrollbarTrack(SkCanvas* canvas, PaintScrollbarTrack 1267 ui/native_theme/native_theme_win.cc HRESULT NativeThemeWin::PaintScrollbarTrack(