Making the IntentSynchronizer constructor public, so that an executor service ca…

…n be passed from outside.

Change-Id: If96bd4dfa90222db36061d3f493338217d82c2de

@@ -74,7 +74,7 @@ public class IntentSynchronizer implements IntentSynchronizationService {
      * @param intentService the intent service
      * @param executorService executor service for synchronization thread
      */
-    IntentSynchronizer(ApplicationId appId, IntentService intentService,
+    public IntentSynchronizer(ApplicationId appId, IntentService intentService,
                        ExecutorService executorService) {
         this.appId = appId;
         this.intentService = intentService;