Call scoped_refptr<T>::get() rather than relying on implicit "operator T*"

chrome/browser/net/proxy_service_factory.cc

Index: chrome/browser/net/proxy_service_factory.cc
diff --git a/chrome/browser/net/proxy_service_factory.cc b/chrome/browser/net/proxy_service_factory.cc
index 8943104494ff5973bbd30d9721e4d5d390f343e2..9d30b1e3f6e9e4e15802de32530d73cbbe443666 100644
--- a/chrome/browser/net/proxy_service_factory.cc
+++ b/chrome/browser/net/proxy_service_factory.cc
@@ -47,7 +47,7 @@ ChromeProxyConfigService* ProxyServiceFactory::CreateProxyConfigService() {
   // that code be moved to chrome/browser instead of being in net, so that it
   // can use BrowserThread instead of raw MessageLoop pointers? See bug 25354.
   base_service = net::ProxyService::CreateSystemProxyConfigService(
-      BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO),
+      BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO).get(),
       BrowserThread::UnsafeGetMessageLoopForThread(BrowserThread::FILE));
 #endif  // !defined(OS_CHROMEOS)