Clear address:port in icecandidateerror for tcp servers with private IP

Bug: chromium:1072401
Change-Id: I6af81a2b2b22b5f8d7edb8fb7f66f69b866db1c6
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/174753
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Commit-Queue: Eldar Rello <elrello@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#31275}

p2p/client/basic_port_allocator.h

@@ -269,6 +269,7 @@ class RTC_EXPORT BasicPortAllocatorSession : public PortAllocatorSession,
   std::vector<PortConfiguration*> configs_;
   std::vector<AllocationSequence*> sequences_;
   std::vector<PortData> ports_;
+  std::vector<IceCandidateErrorEvent> candidate_error_events_;
   uint32_t candidate_filter_ = CF_ALL;
   // Policy on how to prune turn ports, taken from the port allocator.
   webrtc::PortPrunePolicy turn_port_prune_policy_;