diff -r 000000000000 -r 6474c204b198 mobile/android/base/background/announcements/AnnouncementsFetchDelegate.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mobile/android/base/background/announcements/AnnouncementsFetchDelegate.java	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,48 @@
+/* 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.background.announcements;
+
+import java.util.List;
+import java.util.Locale;
+
+public interface AnnouncementsFetchDelegate {
+  /**
+   * @return the timestamp of the last fetch in milliseconds.
+   */
+  public long getLastFetch();
+
+  /**
+   * @return the Date header string of the last response, or null if not present.
+   */
+  public String getLastDate();
+
+  /**
+   * @return the current system locale (e.g., en_us).
+   */
+  public Locale getLocale();
+
+  /**
+   * @return the User-Agent header to use for the request.
+   */
+  public String getUserAgent();
+
+  /**
+   * @return the server URL to interrogate, including path.
+   */
+  public String getServiceURL();
+
+  /*
+   * Callback methods.
+   * Note that we provide both a local fetch time and a server date here.
+   * This is so we can track how long we've waited (local), and supply the
+   * date back to the server for If-Modified-Since.
+   */
+  public void onNoNewAnnouncements(long localFetchTime, String serverDate);
+  public void onNewAnnouncements(List<Announcement> snippets, long localFetchTime, String serverDate);
+  public void onLocalError(Exception e);
+  public void onRemoteError(Exception e);
+  public void onRemoteFailure(int status);
+  public void onBackoff(int retryAfterInSeconds);
+}
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