diff -r 000000000000 -r 6474c204b198 mobile/android/base/sync/repositories/delegates/DeferrableRepositorySessionCreationDelegate.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mobile/android/base/sync/repositories/delegates/DeferrableRepositorySessionCreationDelegate.java	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,41 @@
+/* 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.delegates;
+
+import org.mozilla.gecko.sync.ThreadPool;
+import org.mozilla.gecko.sync.repositories.RepositorySession;
+
+public abstract class DeferrableRepositorySessionCreationDelegate implements RepositorySessionCreationDelegate {
+  @Override
+  public RepositorySessionCreationDelegate deferredCreationDelegate() {
+    final RepositorySessionCreationDelegate self = this;
+    return new RepositorySessionCreationDelegate() {
+
+      // TODO: rewrite to use ExecutorService.
+      @Override
+      public void onSessionCreated(final RepositorySession session) {
+        ThreadPool.run(new Runnable() {
+          @Override
+          public void run() {
+            self.onSessionCreated(session);
+          }});
+      }
+
+      @Override
+      public void onSessionCreateFailed(final Exception ex) {
+        ThreadPool.run(new Runnable() {
+          @Override
+          public void run() {
+            self.onSessionCreateFailed(ex);
+          }});
+      }
+
+      @Override
+      public RepositorySessionCreationDelegate deferredCreationDelegate() {
+        return this;
+      }
+    };
+  }
+}