chromium/chrome/android/java/res/anim/decelerate_quart.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
Copyright 2016 The Chromium Authors
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
-->

<decelerateInterpolator xmlns:android="http://schemas.android.com/apk/res/android"
        android:factor="2.0" />