diff -r 000000000000 -r 6474c204b198 mobile/android/base/sync/repositories/Repository.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mobile/android/base/sync/repositories/Repository.java	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,18 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.gecko.sync.repositories;
+
+import org.mozilla.gecko.sync.repositories.delegates.RepositorySessionCleanDelegate;
+import org.mozilla.gecko.sync.repositories.delegates.RepositorySessionCreationDelegate;
+
+import android.content.Context;
+
+public abstract class Repository {
+  public abstract void createSession(RepositorySessionCreationDelegate delegate, Context context);
+
+  public void clean(boolean success, RepositorySessionCleanDelegate delegate, Context context) {
+    delegate.onCleaned(this);
+  }
+}
\ No newline at end of file