(cherry picked from commit 85907b9d)

(cherry picked from commit 0c91e0b7)

(cherry picked from commit ef76292a)

(cherry picked from commit 80618c50)

(cherry picked from commit ea7da747)

(cherry picked from commit 2b020e31)

(cherry picked from commit 38025c89)

(cherry picked from commit 44d64429)

(cherry picked from commit 6d27fa61)

(cherry picked from commit cc42e18e)

(cherry picked from commit dd3f1a32)

On video playback resume back from mulittaskiing, connection to
playbackservice could fail and mess video playback

(cherry picked from commit 42680658)

AudioTrack will say it support multi channels but it will just cut every
channels after 2.0. That's why we could not hear the voice with some medias on
some devices (Nexus 6p, Chrome book).

Fixes #800

(cherry picked from commit f862cf03)

(cherry picked from commit 2e78a8de)

(cherry picked from commit b92107fd)

Fix #805

(cherry picked from commit 5da2faa2)

(cherry picked from commit 07850f91)

(cherry picked from commit 3a6b017b)

(cherry picked from commit 8fcba75a)

(cherry picked from commit 78ec0c3b)

(cherry picked from commit d35f7547)

(cherry picked from commit 62c72805)

(cherry picked from commit 09fa2ed8)

(cherry picked from commit 043b3f0d)

(cherry picked from commit c8d59d68)

(cherry picked from commit 4efe694b)

(cherry picked from commit 08d512a2)

Should reduce ANR