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

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright 2018 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. -->

<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    android:gravity="center" >

    <TextView
        style="@style/BlackCaption"
        android:id="@+id/explore_sites_title"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="@dimen/explore_sites_spacing"
        android:gravity="center"
        android:text="@string/explore_sites_title" />

    <LinearLayout
        android:id="@+id/explore_sites_tiles"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="@dimen/explore_sites_spacing"
        android:paddingHorizontal="@dimen/explore_sites_padding"
        android:orientation="horizontal" />

    <Button
        android:id="@+id/explore_sites_more_button"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:layout_marginTop="@dimen/explore_sites_spacing"
        android:layout_marginHorizontal="@dimen/explore_sites_margin"
        android:layout_marginBottom="@dimen/explore_sites_spacing"
        android:text="@string/ntp_explore_sites_more" />

</LinearLayout>