Reference count ProxyService....

net/http/http_network_layer.cc

 // 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.
 
 #include "net/http/http_network_layer.h"
 
 #include "base/logging.h"
 #include "net/http/http_network_session.h"
 #include "net/http/http_network_transaction.h"
 #include "net/socket/client_socket_factory.h"
@@ skipping 28 matching lines @@
     : socket_factory_(socket_factory),
       host_resolver_(host_resolver),
       proxy_service_(proxy_service),
       session_(NULL),
       suspended_(false) {
   DCHECK(proxy_service_);
 }
 
 HttpNetworkLayer::HttpNetworkLayer(HttpNetworkSession* session)
     : socket_factory_(ClientSocketFactory::GetDefaultFactory()),
-      host_resolver_(NULL),
-      proxy_service_(NULL),
       session_(session),
       suspended_(false) {
   DCHECK(session_.get());
 }
 
 HttpNetworkLayer::~HttpNetworkLayer() {
 }
 
 HttpTransaction* HttpNetworkLayer::CreateTransaction() {
   if (suspended_)
@@ skipping 11 matching lines @@
 
   if (suspend && session_)
     session_->connection_pool()->CloseIdleSockets();
 }
 
 HttpNetworkSession* HttpNetworkLayer::GetSession() {
   if (!session_) {
     DCHECK(proxy_service_);
     session_ = new HttpNetworkSession(host_resolver_, proxy_service_,
                                       socket_factory_);
+    // These were just temps for lazy-initializing HttpNetworkSession.
+    host_resolver_ = NULL;
+    proxy_service_ = NULL;
   }
   return session_;
 }
 
 }  // namespace net