make ProxyService::CreateSystemProxyConfigService return scoped_ptrs NOT FOR REVIEW

chrome/browser/io_thread.cc

Index: chrome/browser/io_thread.cc
diff --git a/chrome/browser/io_thread.cc b/chrome/browser/io_thread.cc
index 575223179e74d406ed0a5c3f1890475fe78fe1da..5765b95b1d1f9fa7f93457865286700c22e1f15e 100644
--- a/chrome/browser/io_thread.cc
+++ b/chrome/browser/io_thread.cc
@@ -1221,14 +1221,11 @@ void IOThread::InitSystemRequestContextOnIOThread() {
 
   const base::CommandLine& command_line =
       *base::CommandLine::ForCurrentProcess();
-  globals_->system_proxy_service.reset(
-      ProxyServiceFactory::CreateProxyService(
-          net_log_,
-          globals_->proxy_script_fetcher_context.get(),
-          globals_->system_network_delegate.get(),
-          system_proxy_config_service_.release(),
-          command_line,
-          quick_check_enabled_.GetValue()));
+  globals_->system_proxy_service.reset(ProxyServiceFactory::CreateProxyService(
+      net_log_, globals_->proxy_script_fetcher_context.get(),
+      globals_->system_network_delegate.get(),
+      system_proxy_config_service_.Pass(), command_line,
+      quick_check_enabled_.GetValue()));
 
   net::HttpNetworkSession::Params system_params;
   InitializeNetworkSessionParams(&system_params);