From 03f4279d380318b6cf3c7dd651d8ae5748657c98 Mon Sep 17 00:00:00 2001
From: Jin Seok Park <jinpark@google.com>
Date: Tue, 17 Dec 2019 11:08:23 +0900
Subject: [PATCH] [Media ML] Add button session management related classes

This CL creates hidden MediaKeyDispatcher and SessionPolicyProvider
classes that OEMs can implement/override to customize button session
management. Implementation code inside MediaSessionService will
follow in the next CL.

Bug: 147027868
Test: build
Change-Id: Ie3d0c558c4a5f04d27411f6f36e9f5c3a6aea3d0