Cleanup MenuRunner API

mash/example/window_type_launcher/window_type_launcher.cc

Index: mash/example/window_type_launcher/window_type_launcher.cc
diff --git a/mash/example/window_type_launcher/window_type_launcher.cc b/mash/example/window_type_launcher/window_type_launcher.cc
index a33422e1a5cc375c87bd5179e13570410bb94ce9..847b625c81ff28d4acf55969aeff433f0ac23fb4 100644
--- a/mash/example/window_type_launcher/window_type_launcher.cc
+++ b/mash/example/window_type_launcher/window_type_launcher.cc
@@ -404,8 +404,7 @@ class WindowTypeLauncherView : public views::WidgetDelegateView,
                          MenuItemView::NORMAL);
     // MenuRunner takes ownership of root.
     menu_runner_.reset(new MenuRunner(
-        root, MenuRunner::HAS_MNEMONICS | views::MenuRunner::CONTEXT_MENU |
-                  views::MenuRunner::ASYNC));
+        root, MenuRunner::HAS_MNEMONICS | views::MenuRunner::CONTEXT_MENU));
     menu_runner_->RunMenuAt(GetWidget(), NULL, gfx::Rect(point, gfx::Size()),
                             views::MENU_ANCHOR_TOPLEFT, source_type);
   }