commit c129c359d75922372639ff4c383cf36c0ca83079
author Qingsi Wang <qingsi@webrtc.org> Thu Apr 18 17:41:58 2019
committer Commit Bot <commit-bot@chromium.org> Thu Apr 18 19:33:41 2019
tree 8a82bbda3ee5f06a66079ac87b4a6816bbe9b9c4
parent 3ba187226e1832c308592dd5e63bf18a90faeb54

Reland "Surface ICE candidates that match an updated candidate filter."

This is a reland of cd8d1cf68e4eeed71fba51c97006a91bfd41813d

Original change's description:
> Surface ICE candidates that match an updated candidate filter.
> 
> After this change an ICE agent can surface candidates that do not match
> the previous filter but are allowed by the updated one. The candidate
> filter, as part of the internal implementation in the ICE transport,
> manifests the RTCIceTransportPolicy field in RTCConfiguration.
> 
> This new feature would allow an ICE agent to gather new candidates when
> the transport policy changes from e.g. 'relay' to 'all' without an ICE
> restart.
> 
> A caveat in the current implementation remains, and a candidate can
> surface multiple times if the transport policy, or the candidate filter
> directly, performs multiple transitions from a value that disallows to
> one that allows the underlying candidate type. For example, if the
> transport policy is updated by 'all' -> 'relay' -> 'all', the same host
> candidate can surface after the second update.
> 
> 
> Bug: webrtc:8939
> Change-Id: I92c2e07dafab225c702c5de28f47958a0d3270cc
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/132282
> Commit-Queue: Qingsi Wang <qingsi@webrtc.org>
> Reviewed-by: Jeroen de Borst <jeroendb@webrtc.org>
> Reviewed-by: Seth Hampson <shampson@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#27674}

Bug: webrtc:8939
Change-Id: I9c32b1ea05028ecd937ab4912779dd958faf734f
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/133582
Reviewed-by: Seth Hampson <shampson@webrtc.org>
Reviewed-by: Jeroen de Borst <jeroendb@webrtc.org>
Commit-Queue: Qingsi Wang <qingsi@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#27694}