Allow receiving a packet on a TURN port from an unknown address.

webrtc/p2p/base/testturnserver.h

Index: webrtc/p2p/base/testturnserver.h
diff --git a/webrtc/p2p/base/testturnserver.h b/webrtc/p2p/base/testturnserver.h
index 8660ae1ff27b5add65846ea50ac18e71b73ff765..3d6074dc9b51100829678adce7a771478e9b5c48 100644
--- a/webrtc/p2p/base/testturnserver.h
+++ b/webrtc/p2p/base/testturnserver.h
@@ -71,6 +71,10 @@ class TestTurnServer : public TurnAuthInterface {
     server_.set_redirect_hook(redirect_hook);
   }
 
+  void set_enable_permission_checks(bool enable) {
+    server_.set_enable_permission_checks(enable);
+  }
+
   void AddInternalSocket(const rtc::SocketAddress& int_addr,
                          ProtocolType proto) {
     rtc::Thread* thread = rtc::Thread::Current();