Comment 0 for bug 1709166

Ubuntu-desktop discussion link - https://lists.ubuntu.com/archives/ubuntu-desktop/2017-August/005075.html
More backstory, addons vs extras used to be universe vs multiverse but that hasn't been true for many releases. The plan is to drop the -extras package.

Plan for this package is to change from:
adobe-flashplugin | flashplugin-installer (drop)
chromium-codecs-ffmpeg-extra
gstreamer1.0-fluendo-mp3 (leave or have more discussion if it's needed with us pulling lame anyway)
gstreamer1.0-libav
gstreamer1.0-plugins-bad (drop)
gstreamer1.0-plugins-ugly

To:
chromium-codecs-ffmpeg-extra
gstreamer1.0-fluendo-mp3
gstreamer1.0-libav
gstreamer1.0-plugins-ugly
gstreamer1.0-vaapi
ttf-mscorefonts-installer