GitLab

The Blink WebXR code has two parallel classes. XRViewData corresponds
to the internal "view" from the spec, and XRView is what is exposed
to JS. XRViewData has session lifetime, while XRView is ephemeral
and created per frame.

This change adds a reference from the XRView to the underlying
XRViewData object, as expected by the spec's algorithms. This requires
making XRViewData and their containing list garbage-collected objects.

Bug: 1133381
Change-Id: I696a1a899ab8fdf27a2107bbadeb61773c4ade84
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2438690Reviewed-by: Brandon Jones <bajones@chromium.org>
Commit-Queue: Klaus Weidner <klausw@chromium.org>
Cr-Commit-Position: refs/heads/master@{#812345}