chrome/android/java/res/layout/toolbar_space.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. -->
<merge xmlns:android="http://schemas.android.com/apk/res/android" >

    <Space
        android:layout_width="0dp"
        android:layout_height="1dp"
        android:layout_weight="1" />

</merge>