Add a HostContentSettingsMap layer for Supervised Users.

chrome/chrome_browser.gypi

 # Copyright 2012 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.
 
 {
   'variables': {
     # All .cc, .h, .m, and .mm files under browser except for:
     # * tests and mocks.
     # * code below browser/chromeos
     # * code below browser/extensions
@@ skipping 2562 matching lines @@
       'browser/ssl/ssl_blocking_page.h',
       'browser/ssl/ssl_client_certificate_selector.h',
       'browser/ssl/ssl_error_classification.cc',
       'browser/ssl/ssl_error_classification.h',
       'browser/ssl/ssl_error_handler.cc',
       'browser/ssl/ssl_error_handler.h',
       'browser/ssl/ssl_error_info.cc',
       'browser/ssl/ssl_error_info.h',
     ],
     'chrome_browser_supervised_user_sources': [
+      'browser/content_settings/content_settings_supervised_provider.cc',
+      'browser/content_settings/content_settings_supervised_provider.h',
       'browser/supervised_user/child_accounts/child_account_feedback_reporter_android.cc',
       'browser/supervised_user/child_accounts/child_account_feedback_reporter_android.h',
       'browser/supervised_user/child_accounts/child_account_service.cc',
       'browser/supervised_user/child_accounts/child_account_service.h',
       'browser/supervised_user/child_accounts/child_account_service_android.cc',
       'browser/supervised_user/child_accounts/child_account_service_android.h',
       'browser/supervised_user/child_accounts/child_account_service_factory.cc',
       'browser/supervised_user/child_accounts/child_account_service_factory.h',
       'browser/supervised_user/child_accounts/family_info_fetcher.cc',
       'browser/supervised_user/child_accounts/family_info_fetcher.h',
@@ skipping 1115 matching lines @@
           'variables': {
             'proto_in_dir': 'browser/sync_file_system/drive_backend',
             'proto_out_dir': 'chrome/browser/sync_file_system/drive_backend',
           },
           'includes': [ '../build/protoc.gypi' ]
         },
       ],
     },],
   ],
 }