Fix macro playback.

--HG--
extra : rebase_source : eaf191e08d2aba1a27beb06f682be8d4a73144f5

common/content/events.js

@@ -1155,7 +1155,7 @@ var Events = Module("events", {
                     this.pendingMotionMap = [map, command];
                 }
                 else {
-                    if (modes.replaying && !this.waitForPageLoad())
+                    if (modes.replaying && !events.waitForPageLoad())
                         return true;
 
                     return !execute(map, null, this.count, null, command) || !map.route;