net: remove DNS certificate checking code.

net/socket/ssl_client_socket.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 NET_SOCKET_SSL_CLIENT_SOCKET_H_
 #define NET_SOCKET_SSL_CLIENT_SOCKET_H_
 #pragma once
 
 #include <string>
 
 #include "net/base/completion_callback.h"
 #include "net/base/load_flags.h"
 #include "net/base/net_errors.h"
 #include "net/socket/ssl_socket.h"
 #include "net/socket/stream_socket.h"
 
 namespace net {
 
 class CertVerifier;
-class DnsCertProvenanceChecker;
 class OriginBoundCertService;
 class SSLCertRequestInfo;
 class SSLHostInfo;
 class SSLHostInfoFactory;
 class SSLInfo;
 class TransportSecurityState;
 
 // This struct groups together several fields which are used by various
 // classes related to SSLClientSocket.
 struct SSLClientSocketContext {
   SSLClientSocketContext()
       : cert_verifier(NULL),
         origin_bound_cert_service(NULL),
         transport_security_state(NULL),
-        dns_cert_checker(NULL),
         ssl_host_info_factory(NULL) {}
 
   SSLClientSocketContext(CertVerifier* cert_verifier_arg,
                          OriginBoundCertService* origin_bound_cert_service_arg,
                          TransportSecurityState* transport_security_state_arg,
-                         DnsCertProvenanceChecker* dns_cert_checker_arg,
                          SSLHostInfoFactory* ssl_host_info_factory_arg,
                          const std::string& ssl_session_cache_shard_arg)
       : cert_verifier(cert_verifier_arg),
         origin_bound_cert_service(origin_bound_cert_service_arg),
         transport_security_state(transport_security_state_arg),
-        dns_cert_checker(dns_cert_checker_arg),
         ssl_host_info_factory(ssl_host_info_factory_arg),
         ssl_session_cache_shard(ssl_session_cache_shard_arg) {}
 
   CertVerifier* cert_verifier;
   OriginBoundCertService* origin_bound_cert_service;
   TransportSecurityState* transport_security_state;
-  DnsCertProvenanceChecker* dns_cert_checker;
   SSLHostInfoFactory* ssl_host_info_factory;
   // ssl_session_cache_shard is an opaque string that identifies a shard of the
   // SSL session cache. SSL sockets with the same ssl_session_cache_shard may
   // resume each other's SSL sessions but we'll never sessions between shards.
   const std::string ssl_session_cache_shard;
 };
 
 // A client socket that uses SSL as the transport layer.
 //
 // NOTE: The SSL handshake occurs within the Connect method after a TCP
@@ skipping 93 matching lines @@
   bool was_spdy_negotiated_;
   // Protocol that we negotiated with the server.
   SSLClientSocket::NextProto next_protocol_;
   // True if an origin bound certificate was sent.
   bool was_origin_bound_cert_sent_;
 };
 
 }  // namespace net
 
 #endif  // NET_SOCKET_SSL_CLIENT_SOCKET_H_