Files.app: Invalidate ScanResult when the scanned directory is changed.

ui/file_manager/file_manager/background/js/media_scanner_unittest.html

Index: ui/file_manager/file_manager/background/js/media_scanner_unittest.html
diff --git a/ui/file_manager/file_manager/background/js/media_scanner_unittest.html b/ui/file_manager/file_manager/background/js/media_scanner_unittest.html
index b6cf9ca337a33e5da9e239f1930653496259584f..53b60e7302d50ff3003e50a5b1ec26d8b3943fea 100644
--- a/ui/file_manager/file_manager/background/js/media_scanner_unittest.html
+++ b/ui/file_manager/file_manager/background/js/media_scanner_unittest.html
@@ -12,16 +12,17 @@
 <script src="../../../../../ui/webui/resources/js/load_time_data.js"></script>
 
 <script src="../../common/js/volume_manager_common.js"></script>
-<script src="../../common/js/importer_common.js"></script>
 <script src="../../common/js/file_type.js"></script>
+<script src="../../common/js/importer_common.js"></script>
 <script src="../../common/js/mock_entry.js"></script>
 <script src="../../common/js/mock_file_system.js"></script>
 <script src="../../common/js/unittest_util.js"></script>
 <script src="../../common/js/util.js"></script>
 <script src="file_operation_util.js"></script>
 <script src="import_history.js"></script>
-<script src="test_import_history.js"></script>
 <script src="media_scanner.js"></script>
+<script src="mock_media_scanner.js"></script>
+<script src="test_import_history.js"></script>
 
 <script src="media_scanner_unittest.js"></script>