Propogate network-worker thread split to api

webrtc/api/java/src/org/webrtc/PeerConnectionFactory.java

Index: webrtc/api/java/src/org/webrtc/PeerConnectionFactory.java
diff --git a/webrtc/api/java/src/org/webrtc/PeerConnectionFactory.java b/webrtc/api/java/src/org/webrtc/PeerConnectionFactory.java
index fef56ba34e153c5ff91c505ac68987c074eae367..0c1ef3ca88e8a5ef77a3f891127e7a3986616c08 100644
--- a/webrtc/api/java/src/org/webrtc/PeerConnectionFactory.java
+++ b/webrtc/api/java/src/org/webrtc/PeerConnectionFactory.java
@@ -24,6 +24,7 @@ public class PeerConnectionFactory {
 
   private static final String TAG = "PeerConnectionFactory";
   private final long nativeFactory;
+  private static Thread networkThread;
   private static Thread workerThread;
   private static Thread signalingThread;
   private EglBase localEglbase;
@@ -198,8 +199,9 @@ public class PeerConnectionFactory {
 
   public void dispose() {
     nativeFreeFactory(nativeFactory);
-    signalingThread = null;
+    networkThread = null;
     workerThread = null;
+    signalingThread = null;
     if (localEglbase != null)
       localEglbase.release();
     if (remoteEglbase != null)
@@ -223,10 +225,16 @@ public class PeerConnectionFactory {
   }
 
   public static void printStackTraces() {
+    printStackTrace(networkThread, "Network thread");
     printStackTrace(workerThread, "Worker thread");
     printStackTrace(signalingThread, "Signaling thread");
   }
 
+  private static void onNetworkThreadReady() {
+    networkThread = Thread.currentThread();
+    Logging.d(TAG, "onNetworkThreadReady");
+  }
+
   private static void onWorkerThreadReady() {
     workerThread = Thread.currentThread();
     Logging.d(TAG, "onWorkerThreadReady");