GitLab

A couple of notification related prefs are moved to
//components/content_settings. Their registration remains in //chrome
since other embedders don't use them yet.

Bug: 1071603
Change-Id: Ic43ea701619c3764db899b4965db6e414638f016
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2288310
Commit-Queue: Evan Stade <estade@chromium.org>
Reviewed-by: Ted Choc <tedchoc@chromium.org>
Cr-Commit-Position: refs/heads/master@{#788878}