Fix compile break on official Windows builder from disabling scoped_refptr<T> conversions.

chrome/browser/ui/webui/help/version_updater_win.cc

Index: chrome/browser/ui/webui/help/version_updater_win.cc
diff --git a/chrome/browser/ui/webui/help/version_updater_win.cc b/chrome/browser/ui/webui/help/version_updater_win.cc
index fed4f2701f2926c6760e1b31e3188cf45df1968d..449ef19d4506e52e2da50230bb0d4d6e6961a84f 100644
--- a/chrome/browser/ui/webui/help/version_updater_win.cc
+++ b/chrome/browser/ui/webui/help/version_updater_win.cc
@@ -184,7 +184,7 @@ void VersionUpdaterWin::UpdateStatus(GoogleUpdateUpgradeResult result,
       break;
     }
     case UPGRADE_IS_AVAILABLE: {
-      DCHECK(!google_updater_);  // Should have been nulled out already.
+      DCHECK(!google_updater_.get());  // Should have been nulled out already.
       CreateGoogleUpdater();
       UpdateStatus(UPGRADE_STARTED, GOOGLE_UPDATE_NO_ERROR, base::string16());
       // Specify true to upgrade now.