[FilesTS] Convert toolbar.js to typescript

Bug: b/319189127
Test: browser_tests --gtest_filter=Toolbar/FilesAppBrowserTest.Test*
Change-Id: I24a8e7a977be136ce3dd218d40bac22de54d6f34
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5289755
Reviewed-by: Luciano Pacheco <[email protected]>
Commit-Queue: Ben Reich <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1259653}
diff --git a/ui/file_manager/integration_tests/BUILD.gn b/ui/file_manager/integration_tests/BUILD.gn
index 5a204722..7bc44423 100644
--- a/ui/file_manager/integration_tests/BUILD.gn
+++ b/ui/file_manager/integration_tests/BUILD.gn
@@ -42,7 +42,6 @@
   "file_manager/tab_index.js",
   "file_manager/tasks.js",
   "file_manager/test_data.js",
-  "file_manager/toolbar.js",
   "file_manager/transfer.js",
 
   # Page Objects.
@@ -146,7 +145,7 @@
 
   # "file_manager/test_data.ts",
 
-  # "file_manager/toolbar.ts",
+  "file_manager/toolbar.ts",
 
   # "file_manager/transfer.ts",