[invalidations] Added table with registered objectsIds

sync/tools/sync_listen_notifications.cc

Index: sync/tools/sync_listen_notifications.cc
diff --git a/sync/tools/sync_listen_notifications.cc b/sync/tools/sync_listen_notifications.cc
index 12d089b5dee356881da5147603fd50ee3ce2ddee..b4e45e6d40febe21c4c84f89ccfbcf057970244f 100644
--- a/sync/tools/sync_listen_notifications.cc
+++ b/sync/tools/sync_listen_notifications.cc
@@ -67,6 +67,10 @@ class NotificationPrinter : public InvalidationHandler {
     }
   }
 
+  virtual std::string GetOwnerName() const OVERRIDE {
+    return "NotificationPrinter";
+  }
+
  private:
   DISALLOW_COPY_AND_ASSIGN(NotificationPrinter);
 };