We were not advertising the extension, though we require it for ANGLE_platform_angle. This was blocking dEQP functionality. Change-Id: I8781867e772b4b1af62f1387faa863f8ce21de76 Reviewed-on: https://chromium-review.googlesource.com/238082Tested-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org>
