GitLab

Add an ArcMediaSession bridge that will send an
AudioFocusManager mojo pointer to Android. This
will allow us to access the media session service
in Chrome from Android and in the future allow us
to delegate audio focus requests.

BUG=883958

Change-Id: I5a00e93ce1a1e4608d3f934522188b6252906cd2
Reviewed-on: https://chromium-review.googlesource.com/c/1225607Reviewed-by: John Abd-El-Malek <jam@chromium.org>
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Reviewed-by: Hidehiko Abe <hidehiko@chromium.org>
Commit-Queue: Becca Hughes <beccahughes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#597191}