GitLab

This reverts commit f4c510e1.

Reason for revert:

Findit (https://goo.gl/kROfz5) identified CL at revision 585064 as the
culprit for failures in the build cycles as shown on:
https://findit-for-me.appspot.com/waterfall/culprit?key=ag9zfmZpbmRpdC1mb3ItbWVyRAsSDVdmU3VzcGVjdGVkQ0wiMWNocm9taXVtL2Y0YzUxMGUxY2IyY2NkYzBjZTA3YjA2MGJlOWFkNTJmOGVkYTVjYjgM

Sample Failed Build: https://ci.chromium.org/buildbot/chromium.webkit/WebKit%20Linux%20Trusty%20Leak/23378

Sample Failed Step: webkit_layout_tests

Original change's description:
> Move XR LayoutTests over to be WPTs
> 
> Moving as many of the WebXR LayoutTests as possible over to be
> WebPlatformTests. All the tests that have been moved test some
> aspect of the spec (https://immersive-web.github.io/webxr/) in
> a platform agnostic way.
> 
> Bug: 863557, 844772
> Change-Id: I203b4c59be0daa0ca624fb0281fc33035f1be8a1
> Reviewed-on: https://chromium-review.googlesource.com/1171857
> Reviewed-by: Brandon Jones <bajones@chromium.org>
> Reviewed-by: Brian Sheedy <bsheedy@chromium.org>
> Commit-Queue: Anna Offenwanger <offenwanger@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#585064}

Change-Id: Ief847c4b554eea132e2b3d5ea0431c1acf6c34c2
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 863557, 844772
Reviewed-on: https://chromium-review.googlesource.com/1185383
Cr-Commit-Position: refs/heads/master@{#585155}