[Webkit-unassigned] [Bug 221225] Implement WebXR getViewerPose and getPose

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=221225

--- Comment #12 from Imanol Fernandez <ifernandez at igalia.com> ---
(In reply to youenn fablet from comment #10)
> WebXRSpace was previously taking a Ref<WebXRSession> and this patch is
> changing it to a WeakPtr<WebXRSession>.
> With this change, WebXRSpace needs to handle the case of a null
> WebXRSession, while previously, it was not possible. Can you describe why
> this is good to do so?
> 
> Are we getting closer to spec? It seems this particular change could
> potentially be observable (before GC, WebXRSpace does something, after GC it
> does something different).

I made the change when I added https://immersive-web.github.io/webxr/#xrsession-viewer-reference-space in order to avoid a cycle between Session and the viewer reference space.

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