commit b4fe7c60947bc75ce1544a58f42c6e5bbd53dcb2
author François Beaufort <beaufort.francois@gmail.com> Wed Feb 27 08:19:44 2019
committer Commit Bot <commit-bot@chromium.org> Wed Feb 27 08:19:44 2019
tree 2ab4f848c35c7de1602ad5dd0582c2d8e5cf1a2c
parent 1dac42f4ccf9bcbb1c2149fb76a755b52fe4ca34

Show mute button in Picture-in-Picture window if Origin Trial.

This CL adds a mute button in the Picture-in-Picture window that
reflects the muted state of the video. If there is no audio track, mute
button will be hidden. This button is working only if  experimental
blink feature MuteButton is enabled or if the Origin Trial with the same
name is enabled.

Screenshot: https://i.imgur.com/UqIhaIV.png

Change-Id: Ibe91abdbcf54d01122010dfe0bf5b99a15415cec
Bug: 935080
Reviewed-on: https://chromium-review.googlesource.com/c/1473271
Reviewed-by: Camille Lamy <clamy@chromium.org>
Reviewed-by: Eliot Courtney <edcourtney@chromium.org>
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Reviewed-by: Mounir Lamouri <mlamouri@chromium.org>
Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
Commit-Queue: François Beaufort <beaufort.francois@gmail.com>
Cr-Commit-Position: refs/heads/master@{#635924}