Don't leak proxy script fetcher's http transaction factories.

chrome/browser/io_thread.h

 // Copyright (c) 2010 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 CHROME_BROWSER_IO_THREAD_H_
 #define CHROME_BROWSER_IO_THREAD_H_
 #pragma once
 
 #include <list>
 #include <string>
@@ skipping 16 matching lines @@
 class ConnectInterceptor;
 class Predictor;
 }  // namespace chrome_browser_net
 
 namespace net {
 class CertVerifier;
 class ClientSocketFactory;
 class DnsRRResolver;
 class HostResolver;
 class HttpAuthHandlerFactory;
+class HttpTransactionFactory;
 class ProxyScriptFetcher;
 class ProxyService;
 class SSLConfigService;
 class URLSecurityManager;
 }  // namespace net
 
 class IOThread : public BrowserProcessSubThread {
  public:
   struct Globals {
     Globals();
     ~Globals();
 
     net::ClientSocketFactory* client_socket_factory;
     scoped_ptr<net::HostResolver> host_resolver;
     scoped_ptr<net::CertVerifier> cert_verifier;
     scoped_ptr<net::DnsRRResolver> dnsrr_resolver;
     scoped_refptr<net::SSLConfigService> ssl_config_service;
     scoped_ptr<net::HttpAuthHandlerFactory> http_auth_handler_factory;
     scoped_refptr<net::ProxyService> proxy_script_fetcher_proxy_service;
+    scoped_ptr<net::HttpTransactionFactory>
+        proxy_script_fetcher_http_transaction_factory;
     scoped_ptr<net::URLSecurityManager> url_security_manager;
     ChromeNetworkDelegate network_delegate;
     scoped_refptr<URLRequestContext> proxy_script_fetcher_context;
   };
 
   // |net_log| must either outlive the IOThread or be NULL.
   IOThread(PrefService* local_state, ChromeNetLog* net_log);
 
   virtual ~IOThread();
 
@@ skipping 92 matching lines @@
 
   // Keeps track of all live ChromeURLRequestContextGetters, so the
   // ChromeURLRequestContexts can be released during
   // IOThread::CleanUpAfterMessageLoopDestruction().
   std::list<ChromeURLRequestContextGetter*> url_request_context_getters_;
 
   DISALLOW_COPY_AND_ASSIGN(IOThread);
 };
 
 #endif  // CHROME_BROWSER_IO_THREAD_H_