Backed out 3 changesets (bug 1039064, bug 1040446, bug 1034124) for ASAN xpcshell hangs.

Backed out changeset 198d06258284 (bug 1034124)
Backed out changeset 15c382469fd1 (bug 1040446)
Backed out changeset f3115a9f645c (bug 1039064)