1288047 - Migrate non-histogram child payload measurements

Status: NEW

(Toolkit :: Telemetry, defect, P3)

Description

[Georg Fritzsche [:gfritzsche]]

After bug 1218576, we need to handle the other data points in the child payload.
We should:
* migrate the ones that are needed (to histograms or scalars)
* drop the rest

Comment 1

[Georg Fritzsche [:gfritzsche]]

Besides the simple measurements etc. above, we need to migrate :
(1) webRtc
 - webRtc has a use-case and definitely is needed in the content process.
(2) log
 - TelemetryLog is actually only used now for Experiments, so we should just drop it now from the child payloads.
(3) threadHangStats
 - threadHangStats should definitely be used in content processes now, lets confirm with mconley.
(4) chromeHangs
 - chromeHangs ... we don't know if it works in content processes (or if anyone uses it), we should find out.