diff -r 000000000000 -r 6474c204b198 mobile/android/base/sync/net/SyncStorageRequestDelegate.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mobile/android/base/sync/net/SyncStorageRequestDelegate.java	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,38 @@
+/* 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;
+
+public interface SyncStorageRequestDelegate {
+  public AuthHeaderProvider getAuthHeaderProvider();
+
+  String ifUnmodifiedSince();
+
+  // TODO: at this point we can access X-Weave-Timestamp, compare
+  // that to our local timestamp, and compute an estimate of clock
+  // skew. Bug 721887.
+
+  /**
+   * Override this to handle a successful SyncStorageRequest.
+   *
+   * SyncStorageResourceDelegate implementers <b>must</b> ensure that the HTTP
+   * responses underlying SyncStorageResponses are fully consumed to ensure that
+   * connections are returned to the pool, for example by calling
+   * <code>BaseResource.consumeEntity(response)</code>.
+   */
+  void handleRequestSuccess(SyncStorageResponse response);
+
+  /**
+   * Override this to handle a failed SyncStorageRequest.
+   *
+   *
+   * SyncStorageResourceDelegate implementers <b>must</b> ensure that the HTTP
+   * responses underlying SyncStorageResponses are fully consumed to ensure that
+   * connections are returned to the pool, for example by calling
+   * <code>BaseResource.consumeEntity(response)</code>.
+   */
+  void handleRequestFailure(SyncStorageResponse response);
+
+  void handleRequestError(Exception ex);
+}