Add network quality change events to net log

net/nqe/event_creator.h

Index: net/nqe/event_creator.h
diff --git a/net/nqe/event_creator.h b/net/nqe/event_creator.h
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+++ b/net/nqe/event_creator.h
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+// Copyright 2017 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.
+
+#ifndef NET_NQE_EVENT_CREATOR_H_
+#define NET_NQE_EVENT_CREATOR_H_
+
+#include <stdint.h>
+
+#include "base/time/time.h"
+#include "net/nqe/effective_connection_type.h"
+
+namespace net {
+
+class NetLogWithSource;
+
+namespace nqe {
+
+namespace internal {
+
+// Adds network quality changed event to the net-internals log. |http_rtt| is
+// the estimate of the HTTP RTT. |transport_rtt| is the estimate of the
+// transport RTT. |downstream_throughput_kbps| is the estimate of the
+// downstream throughput (in kilobits per second). |effective_connection_type|
+// is the current estimate of the effective connection type.
+void AddEffectiveConnectionTypeChangedEventToNetLog(
+    const NetLogWithSource& net_log,
+    base::TimeDelta http_rtt,
+    base::TimeDelta transport_rtt,
+    int32_t downstream_throughput_kbps,
+    EffectiveConnectionType effective_connection_type);
+
+}  // namespace internal
+
+}  // namespace nqe
+
+}  // namespace net
+
+#endif  // NET_NQE_EVENT_CREATOR_H_