UPDATE_SEVERE_RED   54 ash/system/tray_update.cc     case ash::UpdateObserver::UPDATE_SEVERE_RED:
UPDATE_SEVERE_RED 1168 chrome/browser/ui/ash/system_tray_delegate_chromeos.cc           severity = ash::UpdateObserver::UPDATE_SEVERE_RED;
UPDATE_SEVERE_RED  319 chrome/browser/ui/ash/system_tray_delegate_win.cc           severity = ash::UpdateObserver::UPDATE_SEVERE_RED;