Add ios_chrome_generate_order_file gn arg

This CL adds tooling to create an order file after launch if the
`ios_chrome_generate_order_file` gn arg is `true`.

Change-Id: I4bd57586b677c9eef0ae9d7bfc685052e6550bc6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5235012
Auto-Submit: Mike Dougherty <michaeldo@chromium.org>
Reviewed-by: Sergio Collazos <sczs@chromium.org>
Commit-Queue: Mike Dougherty <michaeldo@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1277033}
NOKEYCHECK=True
GitOrigin-RevId: c42e411cdaf02d0bf55988a20b61e481fa2cd54b
2 files changed