TimingProvider misses error property.

[chrisguttandin]

The spec mentions an error property of the TimingProvider on several occasions but the TimingProvider interface doesn't contain an error property.

http://webtiming.github.io/timingobject/#x5-1-create-a-new-timing-object
http://webtiming.github.io/timingobject/#x6-5-report-an-error

[ingararntzen]

You are quite right. Both error reporting and also readystate reporting is only indicated in the spec I think, with no real follow through, neither in the spec nor in the timingsrc implementation.