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

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright 2019 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. -->
<FrameLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@android:color/transparent">

    <!-- We need 2 FrameLayouts here because the outer one is the scrim that covers the whole screen
         while the inner one is a frame for the ListView. We use this frame as a background for the
         list because the background is a 9-patch and has extra padding automatically. The extra
         padding conflicts with the padding and clipToPadding attributes of the list, so they are
         separated. -->
    <FrameLayout
        android:id="@+id/context_menu_frame"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@drawable/popup_bg_tinted"
        android:layout_marginStart="@dimen/revamped_context_menu_lateral_margin"
        android:layout_marginEnd="@dimen/revamped_context_menu_lateral_margin"
        android:layout_marginTop="@dimen/revamped_context_menu_vertical_margin"
        android:layout_marginBottom="@dimen/revamped_context_menu_vertical_margin"
        android:layout_gravity="center">

        <!-- Setting listSelector to transparent prevents the list items that have
             selectableItemBackground from having a double highlight effect. -->
        <org.chromium.chrome.browser.contextmenu.RevampedContextMenuListView
            android:id="@+id/context_menu_list_view"
            android:layout_width="@dimen/context_menu_max_width"
            android:layout_height="wrap_content"
            android:paddingBottom="@dimen/revamped_context_menu_bottom_padding"
            android:divider="@null"
            android:listSelector="@android:color/transparent"
            android:clipToPadding="false" />
    </FrameLayout>
</FrameLayout>