Limit the supported ES version based on these caps.

BUG=angleproject:879

Change-Id: If3a097576465b33af0015fcb28dab10e88fdc4d9
Reviewed-on: https://chromium-review.googlesource.com/273160Reviewed-by: Kenneth Russell <kbr@chromium.org>
Tested-by: Geoff Lang <geofflang@chromium.org>