PSA: RTCPeerConnection's mediaConstraints - most constraints removed in M103

[Henrik Boström]

This is a follow-up to PSA: RTCPeerConnection's mediaConstraints is deprecated and will soon be removed.

In M103, the following are removed:

• googScreencastMinBitrate (not possible to get anything other than the default 100 kbps anymore).
  
• googSuspendBelowMinBitrate (not possible to turn on amymore).
  
• googCpuOveruseDetection (not possible to turn off anymore).
  
• Legacy callback-based version of createOffer/createAnswer no longer has legacy mediaConstraints parsing (use promise based versions instead and RTCOfferOptions/RTCAnswerOptions, the feature set is identical).

The ONLY deprecated mediaConstraints paths that have not yet been removed are:

• "googIPv6: false" in RTCPeerConnection's constructor.
• getUserMedia()'s use of mediaConstraints.

A timeline for the removal of the remaining mediaConstraints have not yet been decided, we'll follow up in separate PSAs in the future.

[Henrik Boström]

Update:

• "googIPv6: false" is targeted to be removed in M108.