make ProxyService::CreateSystemProxyConfigService return scoped_ptrs

chrome/browser/profiles/profile_io_data.cc

Index: chrome/browser/profiles/profile_io_data.cc
diff --git a/chrome/browser/profiles/profile_io_data.cc b/chrome/browser/profiles/profile_io_data.cc
index 814728efb89eac07469a4f06371d48df9ad92491..36cd318d596d62282ecfdd2cbcca5c681ade12bc 100644
--- a/chrome/browser/profiles/profile_io_data.cc
+++ b/chrome/browser/profiles/profile_io_data.cc
@@ -1074,7 +1074,7 @@ void ProfileIOData::Init(
       io_thread->net_log(),
       io_thread_globals->proxy_script_fetcher_context.get(),
       io_thread_globals->system_network_delegate.get(),
-      profile_params_->proxy_config_service.release(), command_line,
+      profile_params_->proxy_config_service.Pass(), command_line,
       quick_check_enabled_.GetValue());
   transport_security_state_.reset(new net::TransportSecurityState());
   base::SequencedWorkerPool* pool = BrowserThread::GetBlockingPool();