GitLab

This CL:
* Introduces <network-property-list-mojo>
* Uses the mojo element and mojo properties in <network-apnlist>

Follow-up CLs will use <network-property-list-mojo> more broadly.

Bug: 853953
Change-Id: I25ed760ecb8bfaa88936cbf88271c6c74525f41f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1758490
Commit-Queue: Steven Bennetts <stevenjb@chromium.org>
Reviewed-by: Kyle Horimoto <khorimoto@chromium.org>
Cr-Commit-Position: refs/heads/master@{#690238}