tree 13f39c55187bb9852c445066c2bfbb93eb442e45
parent e79513113762b18e3cbf065ae2d5b95b48ef1ec9
author Hyundo Moon <hdmoon@google.com> 1615276161 +0900
committer Hyundo Moon <hdmoon@google.com> 1615452890 +0000

System MediaRouter2: Add RouteCallback functionality

This CL makes the system MediaRouter2 can receive route related
events for the client application.

Bug: 181122201
Test: Locally tested. Test code will be added when the system APIs
      are actually makred as @SystemApi.
Change-Id: I516d90c725b6a72ba323b30c4c8a013edd737483