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

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright 2017 The Chromium Authors. All rights reserved.
     Use of this source code is governed by a BSD-style license that can be
     found in the LICENSE file. -->
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:gravity="center_vertical"
    style="@style/AlertDialogContent">

    <ProgressBar
        android:layout_width="32dp"
        android:layout_height="32dp"
        android:indeterminate="true"/>

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:text="@string/sign_in_getting_account_management_policy"
        android:textSize="16sp"/>
</LinearLayout>