Added Network Quality Estimator Real-time interface to Cronet

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

+// Copyright 2015 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;
+
+/**
+ * Interface to watch for observations of various round trip times (RTTs) at
+ * various layers of the network stack. These include RTT estimates by QUIC
+ * and TCP, as well as the time between when a URL request is sent and when
+ * the first byte of the response is received. The source of the RTT is
+ * included in the API.
+ */
+public interface NetworkQualityRttObserver {

[mef, 2015/09/25 19:06:42]

According to Android API Guildelines this here should be
NetworkQualityRttListener.

[bengr, 2015/09/29 23:22:50]

Done.

+    /**
+     * Reports a new round trip time observation.
+     * @param rttMs the round trip time in milliseconds.
+     * @param whenMs the time since the epoch in milliseconds.
+     * @param source the observation source from {@link NetworkQualityObservationSource}.
+     */
+    public void onRttObservation(int rttMs, long whenMs, int source);
+}