Backed out changeset 247f04ad3201 (bug 980178) to fix webgl bustage on a CLOSED TREE
Backed out changeset 475168143f2e (bug 980178) to fix webgl bustage on a CLOSED TREE
Backed out changeset 350f36f463d5 (bug 980178) to fix webgl bustage on a CLOSED TREE
Backed out changeset 4dc29fc7b91a (bug 1004309) to fix webgl bustage on a CLOSED TREE