android/sample/res/menu/action_bar_home.xml

<?xml version="1.0" encoding="utf-8"?>

<!--
  Copyright 2014-present, Facebook, Inc.
  All rights reserved.

  This source code is licensed under the license found in the
  LICENSE-examples file in the root directory of this source tree.
-->

<menu
    xmlns:android="http://schemas.android.com/apk/res/android"
    >
  <item
      android:id="@+id/action_benchmark"
      android:title="Benchmark"
      android:showAsAction="always"
      />
</menu>