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

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright 2018 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. -->

<!-- Used by ProgressBarDialogFragment of passwords preferences. -->

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    style="@style/AlertDialogContent">

    <org.chromium.chrome.browser.widget.MaterialProgressBar
        android:id="@+id/passwords_progress_bar"
        android:layout_marginTop="14dp"
        android:layout_width="match_parent"
        android:layout_height="4dp"/>

</LinearLayout>