Change CBD layout and texts

chrome/android/java/res/layout-sw360dp/preference_spinner_custom.xml

 <?xml version="1.0" encoding="utf-8"?>
 <!-- Copyright 2017 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 if its singleLine is set to true. -->
+<!-- Layout used by SpinnerPreference if customLayout is set to true. -->
 
 <RelativeLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     style="@style/PreferenceLayout"
     android:layout_width="match_parent"
     android:layout_height="wrap_content">
 
     <TextView
         android:id="@+id/title"
         style="@style/PreferenceTitle"
+        android:textColor="@color/google_grey_600"
         android:textAlignment="viewStart"
         android:layout_height="wrap_content"
         android:layout_width="wrap_content"
         android:layout_centerVertical="true"
         android:layout_alignParentStart="true"
         android:layout_toStartOf="@id/spinner" />
 
     <Spinner
         android:id="@+id/spinner"
         android:layout_height="wrap_content"
         android:layout_width="wrap_content"
         android:layout_centerVertical="true"
         android:layout_alignParentEnd="true" />
 </RelativeLayout>