Reverting this feature, once again. *sigh*

net/socket/transport_client_socket_pool.h

 // Copyright (c) 2012 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_TRANSPORT_CLIENT_SOCKET_POOL_H_
 #define NET_SOCKET_TRANSPORT_CLIENT_SOCKET_POOL_H_
 #pragma once
 
 #include <string>
 
@@ skipping 139 matching lines @@
   virtual void RequestSockets(const std::string& group_name,
                               const void* params,
                               int num_sockets,
                               const BoundNetLog& net_log) OVERRIDE;
   virtual void CancelRequest(const std::string& group_name,
                              ClientSocketHandle* handle) OVERRIDE;
   virtual void ReleaseSocket(const std::string& group_name,
                              StreamSocket* socket,
                              int id) OVERRIDE;
   virtual void Flush() OVERRIDE;
-  virtual bool IsStalled() const OVERRIDE;
   virtual void CloseIdleSockets() OVERRIDE;
   virtual int IdleSocketCount() const OVERRIDE;
   virtual int IdleSocketCountInGroup(
       const std::string& group_name) const OVERRIDE;
   virtual LoadState GetLoadState(
       const std::string& group_name,
       const ClientSocketHandle* handle) const OVERRIDE;
-  virtual void AddLayeredPool(LayeredPool* layered_pool) OVERRIDE;
-  virtual void RemoveLayeredPool(LayeredPool* layered_pool) OVERRIDE;
   virtual base::DictionaryValue* GetInfoAsValue(
       const std::string& name,
       const std::string& type,
       bool include_nested_pools) const OVERRIDE;
   virtual base::TimeDelta ConnectionTimeout() const OVERRIDE;
   virtual ClientSocketPoolHistograms* histograms() const OVERRIDE;
 
  private:
   typedef ClientSocketPoolBase<TransportSocketParams> PoolBase;
 
@@ skipping 30 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(TransportClientSocketPool);
 };
 
 REGISTER_SOCKET_PARAMS_FOR_POOL(TransportClientSocketPool,
                                 TransportSocketParams);
 
 }  // namespace net
 
 #endif  // NET_SOCKET_TRANSPORT_CLIENT_SOCKET_POOL_H_