Add a continual_gathering_policy in PeerConnection RTCConfiguration

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..826327dca77ca17ff21931d5f932a545ac831044 100644
--- a/talk/app/webrtc/java/src/org/webrtc/PeerConnection.java
+++ b/talk/app/webrtc/java/src/org/webrtc/PeerConnection.java
@@ -135,6 +135,11 @@ public class PeerConnection {
     RSA, ECDSA
   }
 
+  /** Java version of PeerConnectionInterface.ContinuousGathingPolicy */
+  public enum ContinuousGatheringPolicy {
+    GATHERING_ONCE, GATHERING_CONTINUOUSLY
+  }
+
   /** Java version of PeerConnectionInterface.RTCConfiguration */
   public static class RTCConfiguration {
     public IceTransportsType iceTransportsType;
@@ -146,6 +151,7 @@ public class PeerConnection {
     public boolean audioJitterBufferFastAccelerate;
     public int iceConnectionReceivingTimeout;
     public KeyType keyType;
+    public ContinuousGatheringPolicy continuousGatheringPolicy;
 
     public RTCConfiguration(List<IceServer> iceServers) {
       iceTransportsType = IceTransportsType.ALL;
@@ -157,6 +163,7 @@ public class PeerConnection {
       audioJitterBufferFastAccelerate = false;
       iceConnectionReceivingTimeout = -1;
       keyType = KeyType.ECDSA;
+      continuousGatheringPolicy = ContinuousGatheringPolicy.GATHERING_ONCE;
     }
   };