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

net/socket/transport_client_socket_pool.cc

 // 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.
 
 #include "net/socket/transport_client_socket_pool.h"
 
 #include <algorithm>
 
 #include "base/compiler_specific.h"
 #include "base/lazy_instance.h"
@@ skipping 373 matching lines @@
   }
   NotifyDelegateOfCompletion(result);  // Deletes |this|
 }
 
 int TransportConnectJob::ConnectInternal() {
   next_state_ = STATE_RESOLVE_HOST;
   return DoLoop(OK);
 }
 
 scoped_ptr<ConnectJob>
-    TransportClientSocketPool::TransportConnectJobFactory::NewConnectJob(
+TransportClientSocketPool::TransportConnectJobFactory::NewConnectJob(
     const std::string& group_name,
     const PoolBase::Request& request,
-    ConnectJob::Delegate* delegate) const {
+    ConnectJob::Delegate* delegate) {
   return scoped_ptr<ConnectJob>(
       new TransportConnectJob(group_name,
                               request.priority(),
                               request.params(),
                               ConnectionTimeout(),
                               client_socket_factory_,
                               host_resolver_,
                               delegate,
                               net_log_));
 }
@@ skipping 120 matching lines @@
     HigherLayeredPool* higher_pool) {
   base_.AddHigherLayeredPool(higher_pool);
 }
 
 void TransportClientSocketPool::RemoveHigherLayeredPool(
     HigherLayeredPool* higher_pool) {
   base_.RemoveHigherLayeredPool(higher_pool);
 }
 
 }  // namespace net