Add me (dlei@google.com) to media_app_ui/OWNERS

Change-Id: I6f79c58f93cab4995f6103fe4759c2c9cdbe32ee
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2536570Reviewed-by: dstockwell <dstockwell@google.com>
Commit-Queue: dstockwell <dstockwell@google.com>
Auto-Submit: David Lei <dlei@google.com>
Cr-Commit-Position: refs/heads/master@{#827140}

chromeos/components/media_app_ui/OWNERS

@@ -2,6 +2,7 @@ tapted@chromium.org
 dstockwell@google.com
 bugsnash@chromium.org
 patricialor@chromium.org
+dlei@google.com
 
 per-file *.mojom=set noparent
 per-file *.mojom=file://ipc/SECURITY_OWNERS