Make HttpNetworkSession::host_mapping_rules no longer a pointer.

net/http/http_network_session.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/http/http_network_session.h"
 
 #include <inttypes.h>
 
 #include <utility>
 
@@ skipping 91 matching lines @@
       cert_verifier(nullptr),
       enable_server_push_cancellation(false),
       channel_id_service(nullptr),
       transport_security_state(nullptr),
       cert_transparency_verifier(nullptr),
       ct_policy_enforcer(nullptr),
       proxy_service(nullptr),
       ssl_config_service(nullptr),
       http_auth_handler_factory(nullptr),
       net_log(nullptr),
-      host_mapping_rules(nullptr),
       socket_performance_watcher_factory(nullptr),
       ignore_certificate_errors(false),
       testing_fixed_http_port(0),
       testing_fixed_https_port(0),
       enable_tcp_fast_open_for_ssl(false),
       enable_user_alternate_protocol_ports(false),
       enable_spdy_ping_based_connection_checking(true),
       enable_http2(true),
       spdy_session_max_recv_window_size(kSpdySessionMaxRecvWindowSize),
       time_func(&base::TimeTicks::Now),
@@ skipping 346 matching lines @@
       CloseIdleConnections();
       break;
   }
 }
 
 void HttpNetworkSession::OnPurgeMemory() {
   CloseIdleConnections();
 }
 
 }  // namespace net