[sync] Cross platform sync tests to be run on Chrome on iOS buildbots

chrome/chrome_tests.gypi

 # Copyright (c) 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' : {
     'pyautolib_sources': [
       'app/chrome_command_ids.h',
       'app/chrome_dll_resource.h',
       'common/automation_constants.h',
       'common/pref_names.cc',
@@ skipping 3795 matching lines @@
         'browser/sessions/session_backend.cc',
         'browser/sync/glue/session_model_associator.cc',
         'test/base/chrome_test_launcher.cc',
         'test/data/resource.rc',
         'browser/sync/test/integration/apps_helper.cc',
         'browser/sync/test/integration/apps_helper.h',
         'browser/sync/test/integration/autofill_helper.cc',
         'browser/sync/test/integration/autofill_helper.h',
         'browser/sync/test/integration/bookmarks_helper.cc',
         'browser/sync/test/integration/bookmarks_helper.h',
+        'browser/sync/test/integration/cross_platform_sync_test.cc',
         'browser/sync/test/integration/enable_disable_test.cc',
         'browser/sync/test/integration/extension_settings_helper.cc',
         'browser/sync/test/integration/extension_settings_helper.h',
         'browser/sync/test/integration/extensions_helper.cc',
         'browser/sync/test/integration/extensions_helper.h',
         'browser/sync/test/integration/migration_errors_test.cc',
         'browser/sync/test/integration/multiple_client_bookmarks_sync_test.cc',
         'browser/sync/test/integration/multiple_client_passwords_sync_test.cc',
         'browser/sync/test/integration/multiple_client_preferences_sync_test.cc',
         'browser/sync/test/integration/multiple_client_sessions_sync_test.cc',
@@ skipping 846 matching lines @@
                 '--result', '<@(_outputs)',
                 '--isolate', 'browser_tests.isolate',
               ],
             },
           ],
         },
       ],
     }],
   ],  # 'conditions'
 }