Backed out 1 changesets (bug 948583) for potential PGO bustage on a CLOSED TREE

Backed out changeset 49700610a9b7 (bug 948583)
Backed out 2 changesets (bug 948583) on a CLOSED TREE

Backed out changeset 3807c2bc06a2 (bug 948583)
Backed out changeset 64d44d0d790c