thorium-fork/app/src/main/res/menu/menu_main.xml

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    tools:context="activity.VideoListActivity">

    <item
        android:id="@+id/action_search"
        android:orderInCategory="300"
        android:title="@string/action_bar_title_search"
        app:showAsAction="always|collapseActionView"
        app:actionViewClass="android.support.v7.widget.SearchView" />

    <item
        android:id="@+id/action_settings"
        android:orderInCategory="300"
        android:title="@string/action_bar_title_settings"
        app:showAsAction="ifRoom" />

</menu>