Exposing RtpSenders and RtpReceivers from PeerConnection.

talk/app/webrtc/java/jni/classreferenceholder.cc

Index: talk/app/webrtc/java/jni/classreferenceholder.cc
diff --git a/talk/app/webrtc/java/jni/classreferenceholder.cc b/talk/app/webrtc/java/jni/classreferenceholder.cc
index fd37838a7f4c3728da588800f4ec2a137148cf98..bb2f24591caf62fd1ac320a5b3c2bc4e3d5303a0 100644
--- a/talk/app/webrtc/java/jni/classreferenceholder.cc
+++ b/talk/app/webrtc/java/jni/classreferenceholder.cc
@@ -63,6 +63,7 @@ void FreeGlobalClassReferenceHolder() {
 
 ClassReferenceHolder::ClassReferenceHolder(JNIEnv* jni) {
   LoadClass(jni, "java/nio/ByteBuffer");
+  LoadClass(jni, "java/util/ArrayList");
   LoadClass(jni, "org/webrtc/AudioTrack");
   LoadClass(jni, "org/webrtc/DataChannel");
   LoadClass(jni, "org/webrtc/DataChannel$Buffer");
@@ -111,6 +112,8 @@ ClassReferenceHolder::ClassReferenceHolder(JNIEnv* jni) {
   LoadClass(jni, "org/webrtc/VideoRenderer$I420Frame");
   LoadClass(jni, "org/webrtc/VideoCapturer");
   LoadClass(jni, "org/webrtc/VideoTrack");
+  LoadClass(jni, "org/webrtc/RtpSender");
+  LoadClass(jni, "org/webrtc/RtpReceiver");
 }
 
 ClassReferenceHolder::~ClassReferenceHolder() {