chrome/android/java/res/drawable/arrow_down.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright 2021 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. -->

<vector xmlns:android="http://schemas.android.com/apk/res/android"
    android:width="24dp"
    android:height="24dp"
    android:viewportWidth="24"
    android:viewportHeight="24">
    <path
        android:pathData="M12,12m-11.75,0a11.75,11.75 0,1 1,23.5 0a11.75,11.75 0,1 1,-23.5 0"
        android:strokeWidth="0.5"
        android:fillColor="@color/modern_white"
        android:fillType="nonZero"
        android:strokeColor="@color/modern_grey_600"/>
    <group>
    <clip-path
        android:pathData="M12,14.94l-4.4733,-4.4667l0.9467,-0.9467l3.5267,3.5333l3.5267,-3.5333l0.9467,0.9467z"/>
    <path
        android:pathData="M4,4h16v16h-16z"
        android:strokeWidth="1"
        android:fillColor="@color/modern_grey_800"
        android:fillType="evenOdd"
        android:strokeColor="@color/black_alpha_11"/>
    </group>
</vector>