Make CertVerifier a pure virtual interface.

net/tools/fetch/fetch_client.cc

 // 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.
 
 #include "build/build_config.h"
 
 #include "base/at_exit.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
 #include "base/message_loop.h"
 #include "base/metrics/stats_counters.h"
 #include "base/string_number_conversions.h"
 #include "base/string_util.h"
-#include "net/base/cert_verifier.h"
 #include "net/base/completion_callback.h"
 #include "net/base/host_resolver.h"
 #include "net/base/io_buffer.h"
+#include "net/base/multi_threaded_cert_verifier.h"
 #include "net/base/net_errors.h"
 #include "net/base/ssl_config_service_defaults.h"
 #include "net/http/http_auth_handler_factory.h"
 #include "net/http/http_cache.h"
 #include "net/http/http_network_layer.h"
 #include "net/http/http_network_session.h"
 #include "net/http/http_request_info.h"
 #include "net/http/http_server_properties_impl.h"
 #include "net/http/http_transaction.h"
 #include "net/proxy/proxy_service.h"
@@ skipping 108 matching lines @@
   bool use_cache = parsed_command_line.HasSwitch("use-cache");
 
   // Do work here.
   MessageLoop loop(MessageLoop::TYPE_IO);
 
   scoped_ptr<net::HostResolver> host_resolver(
       net::CreateSystemHostResolver(net::HostResolver::kDefaultParallelism,
                                     net::HostResolver::kDefaultRetryAttempts,
                                     NULL));
 
-  scoped_ptr<net::CertVerifier> cert_verifier(new net::CertVerifier);
+  scoped_ptr<net::CertVerifier> cert_verifier(
+      new net::MultiThreadedCertVerifier);
   scoped_ptr<net::ProxyService> proxy_service(
       net::ProxyService::CreateDirect());
   scoped_refptr<net::SSLConfigService> ssl_config_service(
       new net::SSLConfigServiceDefaults);
   net::HttpTransactionFactory* factory = NULL;
   scoped_ptr<net::HttpAuthHandlerFactory> http_auth_handler_factory(
       net::HttpAuthHandlerFactory::CreateDefault(host_resolver.get()));
   net::HttpServerPropertiesImpl http_server_properties;
 
   net::HttpNetworkSession::Params session_params;
@@ skipping 56 matching lines @@
       std::string name(table.GetRowName(index));
       if (name.length() > 0) {
         int value = table.GetRowValue(index);
         printf("%s:\t%d\n", name.c_str(), value);
       }
     }
     printf("</stats>\n");
   }
   return 0;
 }