--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/org.chromium.sdk/src/org/chromium/sdk/SyncCallback.java	Wed Dec 23 17:13:18 2009 -0800
@@ -0,0 +1,20 @@
+// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.sdk;
+
+/**
+ * Secondary callback that should be called after main callback has been
+ * called; it gets called regardless of whether main callback  finished
+ * normally or thrown an exception.
+ * It helps to separate callback logic (which may fail) from multi-thread
+ * synchronization (which shouldn't fail). Typically client may release
+ * his semaphore in this callback.
+ */
+public interface SyncCallback {
+  /**
+   * @param e an exception main callback raised or null if none is reported
+   */
+  void callbackDone(RuntimeException e);
+}