chrome/android/features/autofill_assistant/java/res/drawable/autofill_assistant_swipe_indicator.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. -->
<shape
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
  <solid android:color="@color/modern_grey_300"/>
  <corners android:radius="2dp"/>
  <size android:height="4dp" android:width="36dp"/>
</shape>