Bug 1133051: Clean up SctpFlows on STS r=mt

--HG--
extra : rebase_source : cbc09ce944e4580e3e190766767612b98a8ced61

media/webrtc/signaling/src/mediapipeline/MediaPipeline.cpp

@@ -104,8 +104,8 @@ MediaPipeline::DetachTransport_s()
 
   disconnect_all();
   transport_->Detach();
-  rtp_.transport_ = nullptr;
-  rtcp_.transport_ = nullptr;
+  rtp_.Detach();
+  rtcp_.Detach();
 }
 
 nsresult

media/webrtc/signaling/src/mediapipeline/MediaPipeline.h

@@ -208,6 +208,13 @@ class MediaPipeline : public sigslot::has_slots<> {
         MOZ_ASSERT(flow);
       }
 
+      void Detach()
+      {
+        transport_ = nullptr;
+        send_srtp_ = nullptr;
+        recv_srtp_ = nullptr;
+      }
+
       RefPtr<TransportFlow> transport_;
       State state_;
       RefPtr<SrtpFlow> send_srtp_;