Passes dEQP-GLES2.functional.debug_marker.*

Change-Id: I37f2b6724f32867d2e428613b1b6d9c8377c6d60
Reviewed-on: https://chromium-review.googlesource.com/302990Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Tested-by: Geoff Lang <geofflang@chromium.org>