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

<?xml version="1.0" encoding="utf-8"?>

<!-- Copyright 2014 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/accessibility_tab_switcher_list_item" />
    <size android:height="1px" />
</shape>