This CL changes the lifespan of SSLConnectJobMessengers so that they are created only when needed,

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_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 189 matching lines @@
           host_resolver_(host_resolver),
           net_log_(net_log) {}
 
     virtual ~TransportConnectJobFactory() {}
 
     // ClientSocketPoolBase::ConnectJobFactory methods.
 
     virtual scoped_ptr<ConnectJob> NewConnectJob(
         const std::string& group_name,
         const PoolBase::Request& request,
-        ConnectJob::Delegate* delegate) const OVERRIDE;
+        ConnectJob::Delegate* delegate) OVERRIDE;
 
     virtual base::TimeDelta ConnectionTimeout() const OVERRIDE;
 
    private:
     ClientSocketFactory* const client_socket_factory_;
     HostResolver* const host_resolver_;
     NetLog* net_log_;
 
     DISALLOW_COPY_AND_ASSIGN(TransportConnectJobFactory);
   };
 
   PoolBase base_;
 
   DISALLOW_COPY_AND_ASSIGN(TransportClientSocketPool);
 };
 
 }  // namespace net
 
 #endif  // NET_SOCKET_TRANSPORT_CLIENT_SOCKET_POOL_H_