Notification custom layouts: move settings button to the footer.

chrome/android/java/res/values-v21/styles.xml

 <?xml version="1.0" encoding="utf-8"?>
 <!-- Copyright 2014 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. -->
 
 <resources>
     <!-- Preferences -->
     <style name="PreferencesTheme" parent="ThemeWithActionBar">
         <item name="android:textColorLink">@color/pref_accent_color</item>
         <item name="android:alertDialogTheme">@style/PreferencesDialogTheme</item>
@@ skipping 75 matching lines @@
     </style>
     <style name="WebNotificationButtons">
         <item name="android:layout_marginStart">-8dp</item>
         <item name="android:showDividers">none</item>
     </style>
     <style name="WebNotificationButton"
         parent="@android:style/Widget.DeviceDefault.Light.Button.Borderless.Small">
         <item name="android:background">@drawable/web_notification_button_background</item>
         <item name="android:textColor">@color/secondary_text_default_material_light</item>
     </style>
+    <style name="WebNotificationSettingsButton"
+        parent="@style/WebNotificationButton">
+        <item name="android:textAppearance">@android:style/TextAppearance.Material.Notification.Info</item>
+    </style>
     <style name="WebNotificationLargeIcon">
         <item name="android:padding">12dp</item>
         <item name="android:background">@null</item>
     </style>
     <style name="WebNotificationSmallIcon">
         <item name="android:alpha">1.0</item>
         <item name="android:background">@drawable/web_notification_small_icon_background</item>
         <item name="android:padding">3dp</item>
     </style>
 
@@ skipping 26 matching lines @@
         <item name="android:popupWindowStyle">@style/ListPopupWindow.LowEnd</item>
         <item name="android:listPopupWindowStyle">@style/ListPopupWindow.LowEnd</item>
         <item name="android:spinnerStyle">@style/Spinner.LowEnd</item>
         <item name="android:autoCompleteTextViewStyle">@style/AutoCompleteTextView.LowEnd</item>
 
         <!-- Without HW acceleration the default text cursor looks weird (top
              half is way brighter than the bottom), so we use our own. -->
         <item name="android:textCursorDrawable">@drawable/text_cursor_lowend</item>
     </style>
 </resources>