Had an incorrect label for the gl::Context and was missing a
few edges for new connections.

Bug: None
Change-Id: I037551f8f0a6559b9c522ae192b1cd93edf9bcf0
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2223815Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>