Do not delete a connection in the turn port with permission error or refresh error.

webrtc/p2p/base/turnport.h

Index: webrtc/p2p/base/turnport.h
diff --git a/webrtc/p2p/base/turnport.h b/webrtc/p2p/base/turnport.h
index 17d2d45181930bcc1ce9bb8ba8a75b0cf03225d4..b8a8edfd3244f61d95d51fb7fd94f46ed6af5fee 100644
--- a/webrtc/p2p/base/turnport.h
+++ b/webrtc/p2p/base/turnport.h
@@ -245,9 +245,9 @@ class TurnPort : public Port {
   void ScheduleEntryDestruction(TurnEntry* entry);
   void CancelEntryDestruction(TurnEntry* entry);
 
-  // Destroys the connection with remote address |address|. Returns true if
-  // a connection is found and destroyed.
-  bool DestroyConnection(const rtc::SocketAddress& address);
+  // Marks the connection with remote address |address| failed and
+  // pruned (a.k.a. write-timed-out). Returns true if a connection is found.
+  bool FailAndPruneConnection(const rtc::SocketAddress& address);
 
   ProtocolAddress server_address_;
   RelayCredentials credentials_;