GitLab

Minor update to XRRay.matrix algorithm to recompute internal matrix
if it was detached.

Modification to XRRay's constructors to throw InvalidStateError in
case direction normalization cannot be performed.

Update WPT tests to account for the change.

Bug: 957763
Change-Id: I7e65b660de013badbc2cff249d5a75a5fa75ab96
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1671871Reviewed-by: Brandon Jones <bajones@chromium.org>
Commit-Queue: Piotr Bialecki <bialpio@chromium.org>
Cr-Commit-Position: refs/heads/master@{#671779}