chrome/android/java/res/layout/multiline_spinner_item.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
Copyright 2016 The Chromium Authors
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
-->

<TextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/spinner_item"
    style="?android:attr/spinnerItemStyle"
    android:singleLine="false"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:textAlignment="inherit" />