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

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright 2016 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"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:paddingTop="11dp"
    android:paddingBottom="6dp"
    android:orientation="vertical" >

    <LinearLayout
        android:id="@+id/space_widget_content"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:layout_marginStart="@dimen/list_item_default_margin"
        android:layout_marginEnd="@dimen/list_item_default_margin" >

        <TextView
            android:id="@+id/size_downloaded"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:singleLine="true"
            android:textAppearance="@style/BlueLink3" />

        <!-- The progress bar uses 20dp of space, vertically, including spacing. -->
        <org.chromium.chrome.browser.widget.MaterialProgressBar
            android:id="@+id/space_bar"
            android:layout_width="match_parent"
            android:layout_height="2dp"
            android:layout_marginTop="8dp"
            android:layout_marginBottom="8dp"
            app:colorBackground="@color/google_grey_300"
            app:colorProgress="@color/google_blue_500_alpha_38_opaque"
            app:colorSecondaryProgress="@color/google_blue_500" />

        <TextView
            android:id="@+id/size_free_and_other_apps"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:singleLine="true"
            android:textAppearance="@style/BlackDisabledText2" />

    </LinearLayout>

    <View
        style="@style/Divider"
        android:layout_marginTop="@dimen/list_item_default_margin" />

</LinearLayout>