Fix EGLQueryContextTest. BUG=466704 Change-Id: I6d87d6cd155fea347cac50b6cb5d1f9641f23e4a Reviewed-on: https://chromium-review.googlesource.com/259761 Tested-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Kenneth Russell <kbr@chromium.org>