chromeos: Wait for service to be available when getting system salt

chromeos/chromeos.gyp

 # 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': {
     'chromium_code': 1,
   },
   'includes': [
     'chromeos_memory.gypi',
@@ skipping 447 matching lines @@
         '../testing/gmock.gyp:gmock',
         '../testing/gtest.gyp:gtest',
         '../url/url.gyp:url_lib',
         'chromeos_test_support',
         'power_manager_proto',
       ],
       'sources': [
         'app_mode/kiosk_oem_manifest_parser_unittest.cc',
         'attestation/attestation_flow_unittest.cc',
         'audio/cras_audio_handler_unittest.cc',
+        'cryptohome/system_salt_getter_unittest.cc',
         'dbus/blocking_method_caller_unittest.cc',
         'dbus/cros_disks_client_unittest.cc',
         'dbus/gsm_sms_client_unittest.cc',
         'dbus/ibus/ibus_client_unittest.cc',
         'dbus/ibus/ibus_component_unittest.cc',
         'dbus/ibus/ibus_engine_factory_service_unittest.cc',
         'dbus/ibus/ibus_object_unittest.cc',
         'dbus/ibus/ibus_text_unittest.cc',
         'dbus/introspectable_client_unittest.cc',
         'dbus/modem_messaging_client_unittest.cc',
@@ skipping 67 matching lines @@
         '../third_party/cros_system_api/dbus/power_manager/suspend.proto',
       ],
       'variables': {
         'proto_in_dir': '../third_party/cros_system_api/dbus/power_manager',
         'proto_out_dir': 'chromeos/dbus/power_manager',
       },
       'includes': ['../build/protoc.gypi'],
     },
   ],
 }