diff -r 000000000000 -r 6474c204b198 mobile/android/tests/background/junit3/src/sync/helpers/DefaultGuidsSinceDelegate.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mobile/android/tests/background/junit3/src/sync/helpers/DefaultGuidsSinceDelegate.java	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,19 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+package org.mozilla.gecko.background.sync.helpers;
+
+import org.mozilla.gecko.sync.repositories.delegates.RepositorySessionGuidsSinceDelegate;
+
+public class DefaultGuidsSinceDelegate extends DefaultDelegate implements RepositorySessionGuidsSinceDelegate {
+
+  @Override
+  public void onGuidsSinceFailed(Exception ex) {
+    performNotify("shouldn't fail", ex);
+  }
+
+  @Override
+  public void onGuidsSinceSucceeded(String[] guids) {
+    performNotify("default guids since delegate called", null);
+  }
+}