Also TextureCOMPRESSEDSRGB8ETC2ImplicitAlpha1.
Flaky on Mac Experimental Retina Release (NVIDIA) bot.

BUG=angleproject:2190

Change-Id: Iad620808db3977625ccd7221f6c3eb7a453802e9
Reviewed-on: https://chromium-review.googlesource.com/882391Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Commit-Queue: Yuly Novikov <ynovikov@chromium.org>