Cleanup MenuRunner API

chrome/browser/ui/views/apps/chrome_native_app_window_views_aura_ash.cc

Index: chrome/browser/ui/views/apps/chrome_native_app_window_views_aura_ash.cc
diff --git a/chrome/browser/ui/views/apps/chrome_native_app_window_views_aura_ash.cc b/chrome/browser/ui/views/apps/chrome_native_app_window_views_aura_ash.cc
index 2c9511494fca0b91db09131fab2d6389578cb6a1..a5980d58d5ef16268e9e588e6dc8ccc70ebe262a 100644
--- a/chrome/browser/ui/views/apps/chrome_native_app_window_views_aura_ash.cc
+++ b/chrome/browser/ui/views/apps/chrome_native_app_window_views_aura_ash.cc
@@ -275,9 +275,8 @@ void ChromeNativeAppWindowViewsAuraAsh::ShowContextMenuForView(
         base::Bind(&ChromeNativeAppWindowViewsAuraAsh::OnMenuClosed,
                    base::Unretained(this))));
     menu_runner_.reset(new views::MenuRunner(
-        menu_model_adapter_->CreateMenu(), views::MenuRunner::HAS_MNEMONICS |
-                                               views::MenuRunner::CONTEXT_MENU |
-                                               views::MenuRunner::ASYNC));
+        menu_model_adapter_->CreateMenu(),
+        views::MenuRunner::HAS_MNEMONICS | views::MenuRunner::CONTEXT_MENU));
     menu_runner_->RunMenuAt(source->GetWidget(), NULL,
                             gfx::Rect(p, gfx::Size(0, 0)),
                             views::MENU_ANCHOR_TOPLEFT, source_type);