Initial implementation of Cronet Async API.

components/cronet/android/java/src/org/chromium/net/ExtendedResponseInfo.java

+// Copyright 2014 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.net;
+
+/**
+ * Contains additional information about a response. Sent to the embedder when
+ * request is completed.
+ */
+public interface ExtendedResponseInfo {
+    /**
+     * Returns basic response info.
+     */
+    ResponseInfo getResponseInfo();
+
+    /**
+     * Returns the total amount of data received from network after SSL
+     * decoding and proxy handling but before gzip and sdch decompression.
+     * Available on request completion.
+     */
+    long getTotalReceivedBytes();
+}