net: replace DnsRRResoler with TransportSecurityState in plumbing.

chrome/browser/io_thread.h

 // Copyright (c) 2011 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 <string>
 
@@ skipping 23 matching lines @@
 class HostResolver;
 class HttpAuthHandlerFactory;
 class HttpServerProperties;
 class HttpTransactionFactory;
 class NetworkDelegate;
 class OriginBoundCertService;
 class ProxyConfigService;
 class ProxyService;
 class SdchManager;
 class SSLConfigService;
+class TransportSecurityState;
 class URLRequestContext;
 class URLRequestContextGetter;
 class URLSecurityManager;
 }  // namespace net
 
 // Contains state associated with, initialized and cleaned up on, and
 // primarily used on, the IO thread.
 class IOThread : public content::BrowserThreadDelegate {
  public:
   struct Globals {
     Globals();
     ~Globals();
 
     struct MediaGlobals {
       MediaGlobals();
       ~MediaGlobals();
       // MediaInternals singleton used to aggregate media information.
       scoped_ptr<MediaInternals> media_internals;
     } media;
 
     // The "system" NetworkDelegate, used for Profile-agnostic network events.
     scoped_ptr<net::NetworkDelegate> system_network_delegate;
     scoped_ptr<net::HostResolver> host_resolver;
     scoped_ptr<net::CertVerifier> cert_verifier;
+    // This TransportSecurityState doesn't load or save any state. It's only
+    // used to enforce pinning for system requests and will only use built-in
+    // pins.
+    scoped_ptr<net::TransportSecurityState> transport_security_state;
     scoped_ptr<net::DnsRRResolver> dnsrr_resolver;
     scoped_refptr<net::SSLConfigService> ssl_config_service;
     scoped_ptr<net::HttpAuthHandlerFactory> http_auth_handler_factory;
     scoped_ptr<net::HttpServerProperties> http_server_properties;
     scoped_ptr<net::ProxyService> proxy_script_fetcher_proxy_service;
     scoped_ptr<net::HttpTransactionFactory>
         proxy_script_fetcher_http_transaction_factory;
     scoped_ptr<net::FtpTransactionFactory>
         proxy_script_fetcher_ftp_transaction_factory;
     scoped_ptr<net::URLSecurityManager> url_security_manager;
@@ skipping 111 matching lines @@
       system_url_request_context_getter_;
 
   net::SdchManager* sdch_manager_;
 
   base::WeakPtrFactory<IOThread> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(IOThread);
 };
 
 #endif  // CHROME_BROWSER_IO_THREAD_H_