chrome/android/java/res/layout/bottom_sheet_bottom_nav.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright 2016 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. -->
     
<org.chromium.chrome.browser.widget.bottomsheet.BottomSheetContentController
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/bottom_nav"
    android:layout_width="match_parent"
    android:layout_height="@dimen/bottom_nav_height"
    android:layout_gravity="start|bottom"
    android:background="@color/default_primary_color"
    app:menu="@menu/bottom_sheet_nav_menu"
    app:itemIconTint="@color/bottom_nav_tint"
    app:itemTextColor="@color/bottom_nav_tint"
    android:visibility="gone" />