r=mkaply, sr=mkaply (OS/2 only) OS/2 changes from threading checkin - build bustage Note OS/2 does not work after these changes, it just builds. Need to look at nsAppShell git-svn-id: svn://10.0.0.236/trunk@196387 18797224-902f-48f8-a5cc-f745e15eee43