GitLab

Subscribe on UsbPowerShare local state prefs and pass it to ChromeOS side.

BUG=b:130014793
TEST=chromeos_unittests && ash_unittests

Change-Id: I6cf3f65923693206b3c004078e7ada74153a27fe
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1569015
Commit-Queue: Oleh Lamzin <lamzin@google.com>
Reviewed-by: Dan Erat <derat@chromium.org>
Cr-Commit-Position: refs/heads/master@{#653251}