layer regression

Bug: angleproject:2484

Change-Id: Ib46caa8924c7815154beeb46a291520e57b5cc4f
Reviewed-on: https://chromium-review.googlesource.com/1023833Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Luc Ferron <lucferron@chromium.org>