Notify NQE of TCP RTT values

net/base/socket_performance_watcher_factory.h

 // 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.
 
 #ifndef NET_BASE_SOCKET_PERFORMANCE_WATCHER_FACTORY_H_
 #define NET_BASE_SOCKET_PERFORMANCE_WATCHER_FACTORY_H_
 
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "net/base/net_export.h"
@@ skipping 24 matching lines @@
       const Protocol protocol) = 0;
 
   // Called when updated transport layer RTT information is available from one
   // of the watchers created by |this|. |protocol| is the protocol that was used
   // by the watcher. |rtt| must be the transport layer RTT from this device to
   // the remote transport layer endpoint. These methods are called immediately
   // after the observation is made, hence no timestamp.
   virtual void OnUpdatedRTTAvailable(const Protocol protocol,
                                      const base::TimeDelta& rtt) = 0;
 
+  // Called when one of the watchers created by |this| is being reused for
+  // another transport layer connection.
+  virtual void OnWatcherReset() = 0;
+
  protected:
   SocketPerformanceWatcherFactory() {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(SocketPerformanceWatcherFactory);
 };
 
 }  // namespace net
 
 #endif  // NET_BASE_SOCKET_PERFORMANCE_WATCHER_FACTORY_H_