Download autocheckout whitelist and enable autocheckout for whitelisted sites only.

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.
 
 {
   'targets': [
     {
       'target_name': 'browser',
       'type': 'static_library',
       'variables': { 'enable_wexit_time_destructors': 1, },
@@ skipping 158 matching lines @@
         'browser/autocomplete/shortcuts_provider.cc',
         'browser/autocomplete/shortcuts_provider.h',
         'browser/autocomplete/url_prefix.cc',
         'browser/autocomplete/url_prefix.h',
         'browser/autocomplete/zero_suggest_provider.cc',
         'browser/autocomplete/zero_suggest_provider.h',
         'browser/autofill/address.cc',
         'browser/autofill/address.h',
         'browser/autofill/address_field.cc',
         'browser/autofill/address_field.h',
+        'browser/autofill/autocheckout/whitelist_manager.cc',
+        'browser/autofill/autocheckout/whitelist_manager.h',
+        'browser/autofill/autocheckout/whitelist_url.cc',
+        'browser/autofill/autocheckout/whitelist_url.h',
         'browser/autofill/autocheckout_infobar_delegate.cc',
         'browser/autofill/autocheckout_infobar_delegate.h',
         'browser/autofill/autocheckout_manager.cc',
         'browser/autofill/autocheckout_manager.h',
         'browser/autofill/autocomplete_history_manager.cc',
         'browser/autofill/autocomplete_history_manager.h',
         'browser/autofill/autofill-inl.h',
         'browser/autofill/autofill_cc_infobar_delegate.cc',
         'browser/autofill/autofill_cc_infobar_delegate.h',
         'browser/autofill/autofill_country.cc',
@@ skipping 2941 matching lines @@
           'variables': {
             'jni_gen_dir': 'chrome',
           },
           'includes': [ '../build/jni_generator.gypi' ],
         },
       ],
      },
     ],
   ],
 }