GitLab

This CL:
* Converts network_config.js to use the cros_network_config mojo API.
* Converts network configuration components to use the mojo API.
* Converts all network config elements to use mojo policy behaviors
  and indicators. (Non mojo policy behaviors and indicators are no
  longer in use and will be removed in a follow-up).
* Moves requesting of ManagedProperties and GlobalPolicy to
  network_config.js (instead of being passed by dialog wrappers).
* Wraps the <internet-dialog> instance in internet_page.html with a
  dom-if template to avoid unnecessary mojo calls and avoid reuse edge
  cases.
* Adds mojo bindings to internet_config_dialog.cc
* Eliminates CrPolicyNetworkBehaviorTest which fails now that
  internet_page.html no longer pulls in the behavior. A follow-up will
  remove the behavior entirely.

Bug: 1001598
Change-Id: I93167de671b04b1bb9b8171975b76f89d1c0492a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1803724
Commit-Queue: Steven Bennetts <stevenjb@chromium.org>
Auto-Submit: Steven Bennetts <stevenjb@chromium.org>
Reviewed-by: Kyle Horimoto <khorimoto@chromium.org>
Cr-Commit-Position: refs/heads/master@{#698601}