GitLab

This CL:
* Replaces all uses of CrOnc.DeviceState in Settings UI and related
  cr_elements to OncMojo.DeviceStateProperties.
* Replaces all calls to networkingPrivate.getDeviceStates in Settings
  UI and related cr_elements to CrosNetworkConfig.getDeviceStateList.
* Modifies device related <internet-page> events to use mojo types.

Bug: 853953
Change-Id: I858fc0db3fc8d171b267776644f9a5a90fd266af
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1666840
Commit-Queue: Steven Bennetts <stevenjb@chromium.org>
Reviewed-by: Kyle Horimoto <khorimoto@chromium.org>
Cr-Commit-Position: refs/heads/master@{#672521}