Backed out 3 changesets (bug 853628, bug 853169) for crashing mysteriously

Backed out changeset c0befbf2533d (bug 853169)
Backed out changeset 2e318d0a172b (bug 853169)
Backed out changeset 69f965c0fd46 (bug 853628)

--HG--
extra : rebase_source : cbf40a9b54d1ab221ab1823f9ea32bae7c965c3b