Add a HostContentSettingsMap layer for Supervised Users.

components/content_settings.gypi

 # 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.
 
 {
   'targets': [
     {
       # GN version: //components/content_settings/core/browser
       'target_name': 'content_settings_core_browser',
       'type': 'static_library',
       'dependencies': [
         '../base/base.gyp:base',
         '../base/base.gyp:base_prefs',
         '../net/net.gyp:net',
         '../url/url.gyp:url_lib',
         'content_settings_core_common',
         'pref_registry',
       ],
       'variables': { 'enable_wexit_time_destructors': 1, },
       'include_dirs': [
         '..',
       ],
       'sources': [
         # Note: sources list duplicated in GN build.
+        'content_settings/core/browser/content_settings_binary_value_map.cc',
+        'content_settings/core/browser/content_settings_binary_value_map.h',
         'content_settings/core/browser/content_settings_client.h',
         'content_settings/core/browser/content_settings_default_provider.cc',
         'content_settings/core/browser/content_settings_default_provider.h',
         'content_settings/core/browser/content_settings_details.cc',
         'content_settings/core/browser/content_settings_details.h',
         'content_settings/core/browser/content_settings_observable_provider.cc',
         'content_settings/core/browser/content_settings_observable_provider.h',
         'content_settings/core/browser/content_settings_observer.h',
         'content_settings/core/browser/content_settings_origin_identifier_value_map.cc',
         'content_settings/core/browser/content_settings_origin_identifier_value_map.h',
@@ skipping 58 matching lines @@
         '..',
       ],
       'sources': [
         # Note: sources list duplicated in GN build.
         'content_settings/core/test/content_settings_test_utils.cc',
         'content_settings/core/test/content_settings_test_utils.h',
       ],
     },
   ],
 }