Was related to the new D3D11on12 code.

Bug: angleproject:3986
Change-Id: I801b816c620a7307ee5a236856949866a8daf747
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1854720Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>