Add v16 Notification APIs to NotificationCompat.

As before, we attempt to expose the superset of all
Notification.Builder APIs; where features from the newer
APIs apply to the API level available, we support that
behavior, otherwise we drop it.

This change also has some minor documentation updates that
should be mirrored in the framework.

Bug: 6316809
Change-Id: Ie57625e8bbecae87139f06007b6edd36deee95b1
3 files changed
tree: 8b058d1a1f55fd4ae961ccf18b0287ad2a47a2e5
  1. v13/
  2. v4/
  3. v7/
  4. volley/