Close idle H2 sockets when SpdySession is initialized.

net/socket/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_CLIENT_SOCKET_POOL_H_
 #define NET_SOCKET_CLIENT_SOCKET_POOL_H_
 
 #include <deque>
 #include <memory>
 #include <string>
@@ skipping 135 matching lines @@
   // This flushes all state from the ClientSocketPool.  This means that all
   // idle and connecting sockets are discarded with the given |error|.
   // Active sockets being held by ClientSocketPool clients will be discarded
   // when released back to the pool.
   // Does not flush any pools wrapped by |this|.
   virtual void FlushWithError(int error) = 0;
 
   // Called to close any idle connections held by the connection manager.
   virtual void CloseIdleSockets() = 0;
 
+  // Called to close any idle connections held by the connection manager.
+  virtual void CloseIdleSocketsInGroup(const std::string& group_name) = 0;
+
   // The total number of idle sockets in the pool.
   virtual int IdleSocketCount() const = 0;
 
   // The total number of idle sockets in a connection group.
   virtual int IdleSocketCountInGroup(const std::string& group_name) const = 0;
 
   // Determine the LoadState of a connecting ClientSocketHandle.
   virtual LoadState GetLoadState(const std::string& group_name,
                                  const ClientSocketHandle* handle) const = 0;
 
@@ skipping 32 matching lines @@
     const std::string& group_name,
     const scoped_refptr<typename PoolType::SocketParams>& params,
     int num_sockets,
     const NetLogWithSource& net_log) {
   pool->RequestSockets(group_name, &params, num_sockets, net_log);
 }
 
 }  // namespace net
 
 #endif  // NET_SOCKET_CLIENT_SOCKET_POOL_H_