[NTP Snippets] Fill space below the last snippet if necessary

chrome/android/java/res/values/dimens.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>
     <!-- Connection info popup dimensions -->
     <dimen name="connection_info_padding_wide">24dp</dimen>
     <dimen name="connection_info_padding_thin">16dp</dimen>
 
@@ skipping 202 matching lines @@
     <dimen name="webapp_splash_image_size_minimum">48dp</dimen>
 
     <dimen name="webapp_splash_small_image_size">80dp</dimen>
     <dimen name="webapp_splash_small_title_margin_top">32dp</dimen>
     <dimen name="webapp_splash_large_title_margin_bottom">16dp</dimen>
 
     <!-- Toolbar dimensions -->
     <dimen name="toolbar_tab_count_text_size_1_digit">12dp</dimen>
     <dimen name="toolbar_tab_count_text_size_2_digit">10dp</dimen>
     <dimen name="toolbar_height_no_shadow">56dp</dimen>
+    <dimen name="toolbar_progress_bar_height">2dp</dimen>
     <dimen name="toolbar_button_width">48dp</dimen>
 
     <dimen name="location_bar_margin_top">5dp</dimen>
     <dimen name="location_bar_margin_bottom">5dp</dimen>
 
     <dimen name="toolbar_edge_padding">8dp</dimen>
     <dimen name="location_bar_url_text_size">17sp</dimen>
     <dimen name="location_bar_incognito_badge_padding">7dp</dimen>
     <dimen name="omnibox_suggestion_height">60dp</dimen>
     <dimen name="omnibox_suggestion_answer_height">72dp</dimen>
@@ skipping 88 matching lines @@
     <dimen name="payments_section_separator_height">1dp</dimen>
     <dimen name="payments_section_logo_height">36dp</dimen>
     <dimen name="payments_section_logo_width">56dp</dimen>
     <dimen name="payments_ui_max_dialog_width">600dp</dimen>
     <dimen name="payments_ui_translation">100dp</dimen>
 
     <!-- Dialog dimensions.
          https://www.google.com/design/spec/components/dialogs.html#dialogs-simple-dialogs -->
     <dimen name="dialog_width_unit">56dp</dimen>  <!-- MD dialog widths are multiples of this. -->
 </resources>