kTrackbarTrack    148 ui/native_theme/native_theme_base.cc     case kTrackbarTrack:
kTrackbarTrack    237 ui/native_theme/native_theme_base.cc     case kTrackbarTrack:
kTrackbarTrack    477 ui/native_theme/native_theme_win.cc     case kTrackbarTrack:
kTrackbarTrack   1369 ui/native_theme/native_theme_win.cc   int part_id = part == kTrackbarTrack ? TKP_TRACK : TKP_THUMBBOTTOM;
kTrackbarTrack   1371 ui/native_theme/native_theme_win.cc     part_id = part == kTrackbarTrack ? TKP_TRACKVERT : TKP_THUMBVERT;