Stop processing any incoming packets when turn port is disconnected.

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 4d83806a37126f96fad74abc83f942d494b79630..9faf0644b028e8c4b757a31eac5c1b3d27c78bcb 100644
--- a/webrtc/p2p/base/turnport.h
+++ b/webrtc/p2p/base/turnport.h
@@ -151,6 +151,9 @@ class TurnPort : public Port {
   // Finds the turn entry with |address| and sets its channel id.
   // Returns true if the entry is found.
   bool SetEntryChannelId(const rtc::SocketAddress& address, int channel_id);
+  // Visible for testing.
+  // Shuts down the turn port, usually because of some fatal errors.
+  void Close();

[Taylor Brandstetter, 2016/01/29 18:43:22]

I don't like making methods public only for the sake of testing. However, if the
only time a TURN port is expected to be closed is when it encounters a refresh
error, that would be difficult to reproduce in a test due to the long time
required.

Maybe this is one of the tests we can fix up once we have a "virtual clock"
system.

[honghaiz3, 2016/01/29 19:40:14]

Acknowledged.

 
  protected:
   TurnPort(rtc::Thread* thread,
@@ -201,8 +204,6 @@ class TurnPort : public Port {
     }
   }
 
-  // Shuts down the turn port, usually because of some fatal errors.
-  void Close();
   void OnTurnRefreshError();
   bool SetAlternateServer(const rtc::SocketAddress& address);
   void ResolveTurnAddress(const rtc::SocketAddress& address);