make ProxyService::CreateSystemProxyConfigService return scoped_ptrs

ios/web/shell/shell_url_request_context_getter.cc

 // Copyright 2014 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 "ios/web/shell/shell_url_request_context_getter.h"
 
 #include "base/base_paths.h"
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 71 matching lines @@
     storage_->set_cookie_store(cookie_store.get());
     net::CookieStoreIOS::SwitchSynchronizedStore(nullptr, cookie_store.get());
 
     std::string user_agent = web::GetWebClient()->GetUserAgent(false);
     storage_->set_http_user_agent_settings(
         make_scoped_ptr(
             new net::StaticHttpUserAgentSettings("en-us,en", user_agent))
             .Pass());
     storage_->set_proxy_service(
         net::ProxyService::CreateUsingSystemProxyResolver(
-            proxy_config_service_.release(), 0,
-            url_request_context_->net_log()));
+            proxy_config_service_.Pass(), 0, url_request_context_->net_log()));
     storage_->set_ssl_config_service(new net::SSLConfigServiceDefaults);
     storage_->set_cert_verifier(net::CertVerifier::CreateDefault());
 
     storage_->set_transport_security_state(
         make_scoped_ptr(new net::TransportSecurityState()));
     transport_security_persister_.reset(new net::TransportSecurityPersister(
         url_request_context_->transport_security_state(), base_path_,
         file_task_runner_, false));
     storage_->set_channel_id_service(make_scoped_ptr(
         new net::ChannelIDService(new net::DefaultChannelIDStore(nullptr),
@@ skipping 50 matching lines @@
 
   return url_request_context_.get();
 }
 
 scoped_refptr<base::SingleThreadTaskRunner>
 ShellURLRequestContextGetter::GetNetworkTaskRunner() const {
   return network_task_runner_;
 }
 
 }  // namespace web