Updates for Chrome 146 release

[Elchi3]

This PR is a follow-up to #29033 (146 beta) and to #29034 (missing sub features).

The data was gathered using https://collector.openwebdocs.org/ (v10.17.5) on macOS 26.4 using Chrome release 146.0.7680.72

Audio Playback Stats

This can be confirmed with https://chromestatus.com/feature/5172818344148992

• api.AudioContext.playbackStats
• api.AudioPlaybackStats
• api.AudioPlaybackStats.averageLatency
• api.AudioPlaybackStats.maximumLatency
• api.AudioPlaybackStats.minimumLatency
• api.AudioPlaybackStats.resetLatency
• api.AudioPlaybackStats.toJSON
• api.AudioPlaybackStats.totalDuration
• api.AudioPlaybackStats.underrunDuration
• api.AudioPlaybackStats.underrunEvents

Scroll Triggered Animations

This can be confirmed with https://chromestatus.com/feature/5181996801982464

• css.properties.timeline-trigger-activation-range-end.normal
• css.properties.timeline-trigger-activation-range-start.normal
• css.properties.timeline-trigger-activation-range.normal
• css.properties.timeline-trigger-active-range-end.auto
• css.properties.timeline-trigger-active-range-end.normal
• css.properties.timeline-trigger-active-range-start.auto
• css.properties.timeline-trigger-active-range-start.normal
• css.properties.timeline-trigger-active-range.auto
• css.properties.timeline-trigger-active-range.normal
• css.properties.timeline-trigger.auto
• css.properties.timeline-trigger.normal

WebXR

Changes removed. Cannot be confirmed.

[github-actions]

Tip: Review these changes grouped by change (recommended for most PRs), or grouped by feature (for large PRs).

[Elchi3]

@alcooper91 Hey there, are you able to comment on WebXR changes for the Chrome 146 release? It looks like a number of things are shipping in this release but also some have been removed? (see list above). Or maybe I'm testing wrong?

[caugner]

While working on #29223, I realized we might want to use https://webidl.spec.whatwg.org/#js-setlike. Wdyt?

[alcooper91]

None of those removals seem right. I could be wrong because I’m going off the top of my head, but I don’t think the meshset stuff has landed yet. I also don’t think persistent anchors has anything landed or prepped at all. I can double check later today. How is this generated?

[Elchi3]

We're using simple exposure tests for these "XRSession" in self && "deletePersistentAnchor" in XRSession.prototype, for example. You can run it here: https://collector.openwebdocs.org/tests/api/XRSession

[alcooper91]

Okay, but I don't think that's giving valid answers. The only instance of XRMeshSet in chromium's code base at the moment is the WPT test idl; no implementation: https://source.chromium.org/chromium/chromium/src/+/main:third_party/blink/web_tests/external/wpt/interfaces/real-world-meshing.idl?q=-f:%5Eout%20-f:%5Egen%20XRMeshSet&ss=chromium%2Fchromium%2Fsrc

Similar for deletePersistentAnchors: https://source.chromium.org/search?q=-f:%5Eout%20-f:%5Egen%20deletePersistentAnchor&sq=&ss=chromium%2Fchromium%2Fsrc

Whereas e.g. depthActive is part of our virtual/stable/webexposed test suite which would complain/fail if it were not exposed: https://source.chromium.org/chromium/chromium/src/+/main:third_party/blink/web_tests/virtual/stable/webexposed/global-interface-listing-expected.txt?q=-f:%5Eout%20-f:%5Egen%20depthActive%20f:blink&ss=chromium%2Fchromium%2Fsrc

Running on Chrome 145 on liinux for example I get:

(And I get similar on Chrome 147)
@foolip because it looks like you helped design the tool.

[Elchi3]

Running on Chrome 145 on liinux for example I get:
(And I get similar on Chrome 147)

Thanks for testing! 145 and 147 seem to be "normal".

The confusing results I get are from 146. Maybe someone other than me could test in 146?

[alcooper91]

Linux same results on M146 as 145 and 147.

[caugner]

We're using simple exposure tests for these "XRSession" in self && "deletePersistentAnchor" in XRSession.prototype, for example. You can run it here: collector.openwebdocs.org/tests/api/XRSession

For me, api.XRSession.deletePersistentAnchor is not passing in Chrome 146 and Chrome 147 beta on macOS.

[Elchi3]

Patrick send me a full run on Windows on v146 and all is as expected there, too. I apologize for the trouble.
I can't explain why my test lab Chrome 146 is doing this to me.

[Elchi3]

Ah my Chrome just updated from 146.0.7680.72 to 146.0.7680.76 and now I'm getting sensical results, too.