1089192 - Expose ChromeOnly property on AudioNode for CPU usage

Status: NEW

(Core :: Web Audio, defect, P3)

Description

[Jordan Santell [:jsantell] [@jsantell]]

While in the spec, there doesn't seem to be much normative information regarding what this should be (just a Float between 0-100?)

In the mean time, this would be a great attribute to display and alert users to process-heavy nodes in the web audio developer tool.

Considerations:

* [ChromeOnly] API for now since it doesn't seem to be hammered out, or maybe expose it and be the trendsetters.
* Talking with padenot, this seems like it could potentially be costly if queried in the tool every ~1s or so, so maybe it'd just be used on one node at a time.
* If this is done, is there any global context information we can get from this work? Like a `AudioContext.prototype.cpuUsage` getter that's the aggregate of all the children AudioNodes' cpu usage?

Comment 1

[Bulk Bug Changes for mreavy's org]

Mass change P2->P3 to align with new Mozilla triage process.