Do not attempt to reuse active sockets after a socket pool flush (usually a network change).

net/socket/tcp_client_socket_pool.h

 // Copyright (c) 2010 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_SOCKET_TCP_CLIENT_SOCKET_POOL_H_
 #define NET_SOCKET_TCP_CLIENT_SOCKET_POOL_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 116 matching lines @@
                             const void* resolve_info,
                             RequestPriority priority,
                             ClientSocketHandle* handle,
                             CompletionCallback* callback,
                             const BoundNetLog& net_log);
 
   virtual void CancelRequest(const std::string& group_name,
                              const ClientSocketHandle* handle);
 
   virtual void ReleaseSocket(const std::string& group_name,
-                             ClientSocket* socket);
+                             ClientSocket* socket,
+                             int id);
+
+  virtual void Flush();
 
   virtual void CloseIdleSockets();
 
   virtual int IdleSocketCount() const {
     return base_.idle_socket_count();
   }
 
   virtual int IdleSocketCountInGroup(const std::string& group_name) const;
 
   virtual LoadState GetLoadState(const std::string& group_name,
@@ skipping 45 matching lines @@
   PoolBase base_;
 
   DISALLOW_COPY_AND_ASSIGN(TCPClientSocketPool);
 };
 
 REGISTER_SOCKET_PARAMS_FOR_POOL(TCPClientSocketPool, TCPSocketParams)
 
 }  // namespace net
 
 #endif  // NET_SOCKET_TCP_CLIENT_SOCKET_POOL_H_