diff -r 000000000000 -r 6474c204b198 mobile/android/base/sync/net/HttpResponseObserver.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mobile/android/base/sync/net/HttpResponseObserver.java	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,17 @@
+/* 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.net;
+
+import ch.boye.httpclientandroidlib.HttpResponse;
+
+public interface HttpResponseObserver {
+  /**
+   * Observe an HTTP response.
+   *
+   * @param response
+   *          The <code>HttpResponse</code> to observe.
+   */
+  public void observeHttpResponse(HttpResponse response);
+}