Pass AdvancedBatteryChargeMode* prefs to ChromeOS

Subscribe on AdvancedBatteryChargeModeEnabled and
AdvancedBatteryChargeModeDayConfig local state prefs and pass them to
ChromeOS side.

BUG=b:126541698
TEST=chromeos_unittests && ash_unittests

Change-Id: I1ce95a53bc62db903781e62925f7ae66c15fe7df
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1569935
Commit-Queue: Oleh Lamzin <lamzin@google.com>
Reviewed-by: Dan Erat <derat@chromium.org>
Cr-Commit-Position: refs/heads/master@{#653943}
5 files changed