chromeos: Exclude browser/chromeos/events/ under ozone

chrome/browser/chromeos/chrome_browser_main_chromeos.h

Index: chrome/browser/chromeos/chrome_browser_main_chromeos.h
diff --git a/chrome/browser/chromeos/chrome_browser_main_chromeos.h b/chrome/browser/chromeos/chrome_browser_main_chromeos.h
index c9bc75e48d240548ce09d07507c9d3d95a9ecf3d..7dc069da4a61d344cce94a227aac75a12e13b339 100644
--- a/chrome/browser/chromeos/chrome_browser_main_chromeos.h
+++ b/chrome/browser/chromeos/chrome_browser_main_chromeos.h
@@ -67,7 +67,10 @@ class ChromeBrowserMainPartsChromeos : public ChromeBrowserMainPartsLinux {
   scoped_ptr<DataPromoNotification> data_promo_notification_;
 
   scoped_ptr<internal::DBusServices> dbus_services_;
+
+#if defined(USE_X11)
   scoped_ptr<EventRewriter> event_rewriter_;
+#endif
 
   VersionLoader cros_version_loader_;
   base::CancelableTaskTracker tracker_;