chrome/android/java/res/drawable/infobar_close_button_pressed.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.
-->

<shape
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <corners android:radius="1dp" />
    <solid android:color="@color/button_pressed" />
</shape>