Harald Alvestrand 8546666cb9 Add threading assertions to TransceiverList
Also add a function for accessing the list as internal transceivers
rather than accessing the proxy objects; this exposes where the
internal objects are accessed and where we need external references.

Used the new list function in sdp_offer_answer wherever possible.

Adds an UnsafeList function that is not thread guarded, so that the
job of rooting out those instances can be done in a later CL.

Bug: webrtc:12692
Change-Id: Ia591f22a1c8f82ec452a1a66a94fbf9ab9debd14
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/215581
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Tommi <tommi@webrtc.org>
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#33781}
2021-04-20 06:44:40 +00:00
..
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