Add managed policies for Native Messaging

chrome/chrome_tests_unit.gypi

Index: chrome/chrome_tests_unit.gypi
diff --git a/chrome/chrome_tests_unit.gypi b/chrome/chrome_tests_unit.gypi
index a30986567ff12985da377a85ad33c025b8e24e35..b839f90b3f0b418e8791272cf8e4bb7deeafbc5a 100644
--- a/chrome/chrome_tests_unit.gypi
+++ b/chrome/chrome_tests_unit.gypi
@@ -853,9 +853,10 @@
         'browser/extensions/api/image_writer_private/test_utils.cc',
         'browser/extensions/api/image_writer_private/write_from_file_operation_unittest.cc',
         'browser/extensions/api/log_private/syslog_parser_unittest.cc',
+        'browser/extensions/api/mdns/dns_sd_registry_unittest.cc',
         'browser/extensions/api/messaging/native_message_process_host_unittest.cc',
         'browser/extensions/api/messaging/native_messaging_host_manifest_unittest.cc',
-        'browser/extensions/api/mdns/dns_sd_registry_unittest.cc',
+        'browser/extensions/api/messaging/native_messaging_policy_handler_unittest.cc',
         'browser/extensions/api/omnibox/omnibox_unittest.cc',
         'browser/extensions/api/permissions/permissions_api_helpers_unittest.cc',
         'browser/extensions/api/power/power_api_unittest.cc',
@@ -2316,6 +2317,9 @@
         }],
         ['chromeos==1', {
           'sources!': [
+            'browser/extensions/api/messaging/native_message_process_host_unittest.cc',
+            'browser/extensions/api/messaging/native_messaging_host_manifest_unittest.cc',
+            'browser/extensions/api/messaging/native_messaging_policy_handler_unittest.cc',
             'browser/password_manager/native_backend_gnome_x_unittest.cc',
             'browser/password_manager/native_backend_kwallet_x_unittest.cc',
             'browser/policy/cloud/user_policy_signin_service_unittest.cc',
@@ -2324,9 +2328,9 @@
             'browser/shell_integration_linux_unittest.cc',
             'browser/signin/signin_manager_unittest.cc',
             'browser/storage_monitor/storage_monitor_linux_unittest.cc',
-            'browser/ui/views/frame/opaque_browser_frame_view_layout_unittest.cc',
             'browser/ui/sync/one_click_signin_helper_unittest.cc',
             'browser/ui/sync/one_click_signin_sync_starter_unittest.cc',
+            'browser/ui/views/frame/opaque_browser_frame_view_layout_unittest.cc',
           ],
         }, { # else: chromeos == 0
           'sources/': [