chromium/android_webview/nonembedded/java/res_devui/layout/persistent_error_message.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
  Copyright 2019 The Chromium Authors
  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:id="@+id/crashes_list_activity_layout"
    android:background="@color/warning_yellow"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:paddingStart="10dp"
    android:paddingEnd="10dp"
    android:paddingBottom="5dp"
    android:visibility="gone">

    <TextView
        android:id="@+id/error_text"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        style="?android:attr/textAppearanceMedium"
        android:drawableStart="@drawable/ic_alert_error"
        android:drawablePadding="15dp"
        android:paddingTop="15dp"
        android:paddingBottom="10dp"
        android:textColor="@android:color/black"/>

    <Button
        android:id="@+id/action_button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        style="?android:attr/buttonBarButtonStyle"
        android:textColor="@android:color/black"
        android:layout_gravity="end"
        android:visibility="gone"/>
</LinearLayout>