Fix crash with update check on Linux
Fix crash with update check on Linux

Fix #3907

Auditors: @aekeus

Test Plan: Open the browser and wait 3 minutes.  Check updateLog.log and it should have a message about not scheduling updates

jonathansampson/browser-laptop,pmkary/braver,MKuenzi/browser-laptop,darkdh/browser-laptop,willy-b/browser-laptop,dcposch/browser-laptop,Sh1d0w/browser-laptop,willy-b/browser-laptop,dcposch/browser-laptop,pmkary/braver,darkdh/browser-laptop,willy-b/browser-laptop,darkdh/browser-laptop,timborden/browser-laptop,MKuenzi/browser-laptop,dcposch/browser-laptop,diasdavid/browser-laptop,MKuenzi/browser-laptop,diasdavid/browser-laptop,pmkary/braver,Sh1d0w/browser-laptop,jonathansampson/browser-laptop,diasdavid/browser-laptop,luixxiul/browser-laptop,dcposch/browser-laptop,pmkary/braver,willy-b/browser-laptop,timborden/browser-laptop,luixxiul/browser-laptop,MKuenzi/browser-laptop,luixxiul/browser-laptop,jonathansampson/browser-laptop,darkdh/browser-laptop,luixxiul/browser-laptop,Sh1d0w/browser-laptop,diasdavid/browser-laptop,jonathansampson/browser-laptop,timborden/browser-laptop,Sh1d0w/browser-laptop,timborden/browser-laptop