Comment 12 for bug 570812

i think we should get an official mechanism for this upstream. that mechanism, as fta pointed out should allow us to put changes to preference in packages != chromium. so basically having a pref folder that is read in run-parts order would make sense. in that way you could ship a 90_final-pref file that overrides not so strong defaults shipped in a file like 30-medium-strong-pref