NQE servicification of Chrome Interventions Internals

Also, verified using local Chrome android build. Network
quality change messages appeared on chrome://interventions-internals

Change-Id: I9b958b7fff922fdf8af369c5ba6e29872ceac6dc
Bug: 819244
Reviewed-on: https://chromium-review.googlesource.com/1175554
Reviewed-by: Ryan Sturm <ryansturm@chromium.org>
Commit-Queue: Tarun Bansal <tbansal@chromium.org>
Cr-Commit-Position: refs/heads/master@{#583357}
5 files changed