[FilesTS] Convert guest_os.js to typescript

Bug: b/319189127
Test: browser_tests --gtest_filter=GuestOs/FilesAppBrowserTest.Test*
Change-Id: If101752e62bfdbdd074bae2772ac07bfeaf8cf36
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5288917
Commit-Queue: Ben Reich <[email protected]>
Reviewed-by: Luciano Pacheco <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1259679}
diff --git a/ui/file_manager/integration_tests/BUILD.gn b/ui/file_manager/integration_tests/BUILD.gn
index 792bc99..8fc14c78 100644
--- a/ui/file_manager/integration_tests/BUILD.gn
+++ b/ui/file_manager/integration_tests/BUILD.gn
@@ -26,7 +26,6 @@
   "file_manager/folder_shortcuts.js",
   "file_manager/gear_menu.js",
   "file_manager/grid_view.js",
-  "file_manager/guest_os.js",
   "file_manager/holding_space.js",
   "file_manager/install_linux_package_dialog.js",
   "file_manager/metrics.js",
@@ -94,7 +93,7 @@
 
   # "file_manager/grid_view.ts",
 
-  # "file_manager/guest_os.ts",
+  "file_manager/guest_os.ts",
 
   # "file_manager/holding_space.ts",