Implement additional parts of the new ui for CBD.

chrome/android/java/res/layout/preference_spinner.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. -->
 
 <!-- Layout used by SpinnerPreference. -->
 
 <LinearLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:chrome="http://schemas.android.com/apk/res-auto"
     style="@style/PreferenceLayout"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:orientation="vertical">
 
     <TextView
         android:id="@+id/title"
         android:layout_height="wrap_content"
         android:layout_width="match_parent" />
 
     <Spinner
         android:id="@+id/spinner"
         android:layout_height="wrap_content"
         android:layout_width="match_parent"
         android:paddingStart="0dp"
         android:paddingTop="6dp"
         android:paddingBottom="4dp" />
 
     <View style="@style/PreferenceSpinnerUnderlineView" />
 
 </LinearLayout>