Let Custom Tabs Use Light Progressbar for Dark Toolbar

chrome/android/java/res/values/colors.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>
     <!-- Common colors -->
     <color name="default_text_color">#333</color>
     <color name="default_primary_color">#f2f2f2</color>
     <color name="light_normal_color">#5A5A5A</color>
@@ skipping 85 matching lines @@
 
     <!-- Signin promo screen colors -->
     <color name="illustration_background_color">#4FC3F7</color>
 
     <!-- Contextual Search colors -->
     <color name="contextual_search_promo_text_color">#333333</color>
     <color name="contextual_search_promo_background_color">#EEEEEE</color>
 
     <!-- Progress Bar colors -->
     <color name="progress_bar_foreground">@color/light_active_color</color>
+    <color name="progress_bar_foreground_white">@android:color/white</color>
     <color name="progress_bar_background">#3d4386f7</color>
     <color name="progress_bar_background_white">#4d000000</color>
 
     <!-- Theme colors. Also used for toolbar background -->
     <color name="incognito_primary_color">#505050</color>
 
     <!-- LocationBar colors -->
     <color name="locationbar_light_hint_text">#80ffffff</color>
     <color name="locationbar_light_selection_color">#cc5595fe</color>
 
@@ skipping 30 matching lines @@
     <color name="enhanced_bookmark_list_item_highlight_color">#804281f4</color>
     <color name="enhanced_bookmark_icon_background_color">#ff787878</color>
     <color name="enhanced_bookmark_appbar_background">@color/default_primary_color</color>
 
     <!-- Opt out promo -->
     <color name="opt_out_text_color">#646464</color>
 
     <!-- Media UI Colors -->
     <color name="media_session_icon_color">#14181C</color>
 </resources>