Revert "Temporarily disable WPT-NOTIFY for WebXR tests"

This reverts commit 217bbfe096c6edf9c2e4e9da1ab2fc45d1054e61.

Reason for revert: Turning WPT-Notify back on.

Original change's description:
> Temporarily disable WPT-NOTIFY for WebXR tests
> 
> Bug: 923060
> 
> Change-Id: Ia8fb926fd2f8e2366b8d8179154f080f95e40e1f
> Reviewed-on: https://chromium-review.googlesource.com/c/1418113
> Reviewed-by: Brandon Jones <bajones@chromium.org>
> Commit-Queue: David Dorwin <ddorwin@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#623825}

TBR=ddorwin@chromium.org,bajones@chromium.org

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: 923060
Change-Id: If5d316d6cacbe785a68d7a2d8371b072485db634
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1626546
Reviewed-by: Bill Orr <billorr@chromium.org>
Reviewed-by: Alexander Cooper <alcooper@chromium.org>
Commit-Queue: Bill Orr <billorr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#662778}
1 file changed