So I finally had a chance to sort through the workerStart setup in
http://w3c.github.io/hr-time/#sec-worker-start
It looks like this is in fact aiming to provide a way to convert between
different time bases without round-tripping through wall-clock times,
which is excellent. We need to add something like this for Window
objects as well, imo.
The one issue I have is that workerStart is defined as follows:
The workerStart attribute MUST return a DOMHighResTimeStamp
representing the difference between the time origin of
WorkerGlobalScope and the time origin of the current document.
I assume it means "the WorkerGlobalScope of the AbstractWorker the
getter is invoked on", right?
But I'm not at all sure what "current document" is supposed to mean
here. That part is clearly wrong when getting the .workerStart of a
worker started from another worker (so the code that gets .workerStart
is running in a worker), but even when a worker was started from a
window it's ambiguous: is the "current document" the document that
started the worker or the document the script doing the get is running
in or something else?
-Boris
