Exposing RtpSenders and RtpReceivers from PeerConnection.

talk/app/webrtc/java/src/org/webrtc/PeerConnection.java

Index: talk/app/webrtc/java/src/org/webrtc/PeerConnection.java
diff --git a/talk/app/webrtc/java/src/org/webrtc/PeerConnection.java b/talk/app/webrtc/java/src/org/webrtc/PeerConnection.java
index 8730af96c90035f42e767f73e913f5c849ead55d..ab32d8965c4fcd6cc988c6190cc352ce08fbf152 100644
--- a/talk/app/webrtc/java/src/org/webrtc/PeerConnection.java
+++ b/talk/app/webrtc/java/src/org/webrtc/PeerConnection.java
@@ -212,6 +212,9 @@ public class PeerConnection {
     localStreams.remove(stream);
   }
 
+  public native List<RtpSender> getSenders();
+  public native List<RtpReceiver> getReceivers();
+
   public boolean getStats(StatsObserver observer, MediaStreamTrack track) {
     return nativeGetStats(observer, (track == null) ? 0 : track.nativeTrack);
   }