Except WGL AMD, WGL Intel, and GLX Nvidia.

BUG=922936

Change-Id: I1bdbddd1485578465bcf6ece4b4b7173ae6f9f05
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1442312Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Kenneth Russell <kbr@chromium.org>
Commit-Queue: Jie A Chen <jie.a.chen@intel.com>