Bug 556739 - Forgot one module change in tests header.

browser/components/places/tests/unit/head_bookmarks.js

@@ -54,7 +54,7 @@ let (commonFile = do_get_file("../../test_places/head_common.js", false)) {
 
 
 XPCOMUtils.defineLazyGetter(this, "PlacesUIUtils", function() {
-  Cu.import("resource://gre/modules/PlacesUIUtils.jsm");
+  Cu.import("resource:///modules/PlacesUIUtils.jsm");
   return PlacesUIUtils;
 });