This helps a local user profile their D3D11 startup time.

BUG=436191
BUG=angleproject:966

Change-Id: Ib1b3d62194233cd502980d87c316a95e9bd3a04c
Reviewed-on: https://chromium-review.googlesource.com/264935Reviewed-by: Kenneth Russell <kbr@chromium.org>
Reviewed-by: Brandon Jones <bajones@chromium.org>
Tested-by: Jamie Madill <jmadill@chromium.org>