Add RtcpMuxPolicy support to PeerConnection.

BUG=4611
R=juberti@google.com

Review URL: https://webrtc-codereview.appspot.com/46169004

Cr-Commit-Position: refs/heads/master@{#9251}
diff --git a/talk/app/webrtc/java/jni/classreferenceholder.cc b/talk/app/webrtc/java/jni/classreferenceholder.cc
index 7ff48b9..f074921 100644
--- a/talk/app/webrtc/java/jni/classreferenceholder.cc
+++ b/talk/app/webrtc/java/jni/classreferenceholder.cc
@@ -93,6 +93,7 @@
   LoadClass(jni, "org/webrtc/MediaStream");
   LoadClass(jni, "org/webrtc/MediaStreamTrack$State");
   LoadClass(jni, "org/webrtc/PeerConnection$BundlePolicy");
+  LoadClass(jni, "org/webrtc/PeerConnection$RtcpMuxPolicy");
   LoadClass(jni, "org/webrtc/PeerConnection$IceConnectionState");
   LoadClass(jni, "org/webrtc/PeerConnection$IceGatheringState");
   LoadClass(jni, "org/webrtc/PeerConnection$IceTransportsType");
@@ -143,4 +144,3 @@
 }
 
 }  // namespace webrtc_jni
-