UPGRADE_AVAILABLE_CRITICAL  120 chrome/browser/upgrade_detector.cc     case UPGRADE_AVAILABLE_CRITICAL: {
UPGRADE_AVAILABLE_CRITICAL  172 chrome/browser/upgrade_detector_impl.cc     UpgradeDetected(UPGRADE_AVAILABLE_CRITICAL);
UPGRADE_AVAILABLE_CRITICAL  318 chrome/browser/upgrade_detector_impl.cc       upgrade_available = UPGRADE_AVAILABLE_CRITICAL;