Harald Alvestrand fd9a8f8e23 Const-declare 3 more PC member variables
These can now be initialized in the constructor and are not touched
explicitly in the destructor.

Bug: none
Change-Id: I3d294b15463a8d02bbe7e37fb14eefd017d5c1e4
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/190284
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#32494}
2020-10-26 15:09:46 +00:00
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