Remove @color/appbar_background

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 161 matching lines @@
     <!-- App Background Colors -->
     <color name="light_background_color">#FFFFFF</color>
     <color name="resizing_background_color">#000000</color>
 
     <!-- WebappActivity colors -->
     <color name="webapp_default_bg">#fafafa</color>
     <color name="webapp_splash_title_light">#ffffff</color>
     <color name="webapp_url_bar_bg">#fafafa</color>
     <color name="webapp_url_bar_separator">#e1e1e1</color>
 
-    <!-- Colors common to secondary activities like the BookmarkActivity and the DownloadManagerUi -->
-    <color name="appbar_background">@color/default_primary_color</color>
-
     <!-- Bookmark UI colors -->
     <color name="bookmark_detail_text">#212121</color>
     <color name="bookmark_detail_section">#7C7B79</color>
 
     <!-- Favicon colors -->
     <color name="default_favicon_background_color">#ff787878</color>
 
     <!-- Photo Picker colors -->
     <color name="photo_picker_tile_bg_color">@color/google_grey_200</color>
     <color name="photo_picker_special_tile_bg_color">@color/dark_action_bar_color</color>
@@ skipping 19 matching lines @@
 
     <!-- Translate Infobar colors -->
     <color name="translate_overflow_menu_divider_color">#e0e0e0</color>
 
     <!-- Other colors -->
     <color name="selectable_list_item_highlight_color">#804281f4</color>
     <color name="media_viewer_bg">#000000</color>
     <color name="image_viewer_bg">#0e0e0e</color>
 
 </resources>