chromium/overlay/frameworks/base/core/res/res/layout/webviewchromium_validation_message_bubble.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright 2013 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.
-->
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:background="@drawable/webviewchromium_bubble">

    <LinearLayout
        android:id="@+id/webviewchromium_validation_bubble_top_view"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignStart="@+id/webviewchromium_validation_bubble_icon_view"
        android:layout_alignEnd="@+id/webviewchromium_validation_bubble_text_wrapper"
        android:weightSum="1">

        <View
            android:layout_width="0dp"
            android:layout_height="0dp"
            android:layout_weight="0.25"
            android:visibility="invisible"/>

        <ImageView
            android:id="@+id/webviewchromium_validation_bubble_arrow_image"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentStart="true"
            android:layout_marginBottom="7dp"
            android:src="@drawable/webviewchromium_bubble_arrow_up" />

    </LinearLayout>

    <ImageView
        android:id="@id/webviewchromium_validation_bubble_icon_view"
        android:layout_width="19dp"
        android:layout_height="19dp"
        android:layout_alignParentStart="true"
        android:layout_below="@id/webviewchromium_validation_bubble_top_view"
        android:layout_marginEnd="8dp"
        android:src="@drawable/webviewchromium_pageinfo_warning_major" />

    <LinearLayout
        android:id="@id/webviewchromium_validation_bubble_text_wrapper"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/webviewchromium_validation_bubble_top_view"
        android:layout_toEndOf="@id/webviewchromium_validation_bubble_icon_view"
        android:orientation="vertical">

        <TextView
            android:id="@+id/webviewchromium_validation_bubble_main_text"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:maxWidth="300dp"
            android:textColor="@android:color/black"
            android:textSize="16sp" />

        <TextView
            android:id="@+id/webviewchromium_validation_bubble_sub_text"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:maxWidth="300dp"
            android:textColor="#444"
            android:textSize="13sp" />

    </LinearLayout>

</RelativeLayout>