The patch adds the new end-points and tokens introduced by ANGLE_multiview without implementing them. BUG=angleproject:2062 Change-Id: I9be175263ab54b4f6d7537f05505b87ad763ee2d Reviewed-on: https://chromium-review.googlesource.com/570051Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Olli Etuaho <oetuaho@nvidia.com> Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
