Backed out 4 changesets (bug 973238) for build bustage on a CLOSED TREE

Backed out changeset cc81a0f56362 (bug 973238)
Backed out changeset 472dffac7f21 (bug 973238)
Backed out changeset e40e2dbf7d9e (bug 973238)
Backed out changeset 2ca44eb13ecf (bug 973238)