Add VP9 encode support to the remoting host.

BUG=260879

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=255208

Review URL: https://codereview.chromium.org/28183002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@260618 0039d316-1c4b-4281-b951-d872f2087c98
5 files changed