Backed out changeset a58867875a0b (bug 1076990) for frequent Android talos crashes.
Backed out 4 changesets (bug 879717) for OSX/Android/B2G mochitest failures.

Backed out changeset 353aee813484 (bug 879717)
Backed out changeset cd7d8b93923f (bug 879717)
Backed out changeset 78b01186ff85 (bug 879717)
Backed out changeset 29f4a39efc29 (bug 879717)

CLOSED TREE