chromium/chrome/android/features/keyboard_accessory/internal/java/res/layout/keyboard_accessory_action.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
Copyright 2019 The Chromium Authors
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
-->

<org.chromium.ui.widget.ButtonCompat
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:gravity="center"
    android:layout_height="wrap_content"
    android:layout_width="wrap_content"
    android:minWidth="0dp"
    android:paddingEnd="@dimen/keyboard_accessory_suggestion_padding"
    android:paddingStart="@dimen/keyboard_accessory_suggestion_padding"
    android:layout_marginEnd="@dimen/keyboard_accessory_bar_item_padding"
    android:textAlignment="center"
    style="@style/FilledButton" />