Fix crash in ClientSocketPoolBase.

net/socket/tcp_client_socket_pool.h

 // Copyright (c) 2006-2008 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 <deque>
 #include <map>
 #include <string>
@@ skipping 222 matching lines @@
   void OnCleanupTimerFired() {
     CleanupIdleSockets(false);
   }
 
   // Removes the ConnectingSocket corresponding to |handle| from the
   // |connecting_socket_map_|.
   void RemoveConnectingSocket(const ClientSocketHandle* handle);
 
   static void CheckSocketCounts(const Group& group);
 
+  // Remove an active socket.
+  void RemoveActiveSocket(const std::string& group_name, Group* group);
+
   // Process a request from a group's pending_requests queue.
   void ProcessPendingRequest(const std::string& group_name, Group* group);
 
   GroupMap group_map_;
 
   ConnectingSocketMap connecting_socket_map_;
 
   // Timer used to periodically prune idle sockets that timed out or can't be
   // reused.
   base::RepeatingTimer<ClientSocketPoolBase> timer_;
@@ skipping 78 matching lines @@
   // the posting of the task and the execution, then we'll hit the DCHECK that
   // |ClientSocketPoolBase::group_map_| is empty.
   scoped_refptr<ClientSocketPoolBase> base_;
 
   DISALLOW_COPY_AND_ASSIGN(TCPClientSocketPool);
 };
 
 }  // namespace net
 
 #endif  // NET_SOCKET_TCP_CLIENT_SOCKET_POOL_H_