Class to list only printers that support local printing

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 02980aa534573aabee484f0db036ced2a13ea9e8..909d5314af9425a03a3e9d6ff40259f2b08c9d9d 100644
--- a/chrome/chrome_tests_unit.gypi
+++ b/chrome/chrome_tests_unit.gypi
@@ -411,6 +411,12 @@
             '../components/components.gyp:breakpad_stubs',
           ],
         }],
+        ['enable_mdns == 1', {
+            'sources': [
+              'browser/local_discovery/test_service_discovery_client.cc',
+              'browser/local_discovery/test_service_discovery_client.h',
+            ]
+        }],
       ],
     },
     {
@@ -2217,7 +2223,8 @@
               'utility/local_discovery/local_domain_resolver_unittest.cc',
               'utility/local_discovery/service_discovery_client_unittest.cc',
               'browser/local_discovery/privet_device_lister_unittest.cc',
-              'browser/local_discovery/privet_notifications_unittest.cc'
+              'browser/local_discovery/privet_notifications_unittest.cc',
+              'browser/local_discovery/privet_local_printer_lister_unittest.cc',
             ]
         }],
         ['configuration_policy==0', {