Bug 584369 - history sync is busted on tip, r=philiKON

services/sync/modules/engines/history.js

@@ -88,7 +88,7 @@ function HistoryStore(name) {
   Store.call(this, name);
 
   // Explicitly nullify our references to our cached services so we don't leak
-  Observers.add("places-shutdown", function() {
+  Svc.Obs.add("places-shutdown", function() {
     for each([query, stmt] in Iterator(this._stmts))
       stmt.finalize();
     this.__hsvc = null;