Backout bug 508725 (d267bb4b58b5, 50f71edffeb9, 6aec8e22fe60, e62e1f33958a, 0f146c435249, eb959b9f4862, 2b0ee42f3aa0, 02db01cd6796, 2ef0e517d43d, b650588e05c9 and a3c916829d56) for build failure on a CLOSED TREE.