Add AudioVisualPerception to MediaPerceptionPrivate API.

Bug: 808144
Change-Id: I04a25f1776b7299dfc9273108e5fc38ed8c34290
Reviewed-on: https://chromium-review.googlesource.com/897895
Commit-Queue: Wei Guan <weigua@chromium.org>
Reviewed-by: Toni Barzic <tbarzic@chromium.org>
Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#536140}(cherry picked from commit 9932813b326c3d4b70e2b0ca645b12e5890cf74f)
Reviewed-on: https://chromium-review.googlesource.com/927022
Reviewed-by: Simon Que <sque@chromium.org>
Cr-Commit-Position: refs/branch-heads/3325@{#531}
Cr-Branched-From: bc084a8b5afa3744a74927344e304c02ae54189f-refs/heads/master@{#530369}
4 files changed