Add ice_candidate_pool_size to Obj-C and Java RTCConfiguration.

webrtc/api/java/src/org/webrtc/PeerConnection.java

Index: webrtc/api/java/src/org/webrtc/PeerConnection.java
diff --git a/webrtc/api/java/src/org/webrtc/PeerConnection.java b/webrtc/api/java/src/org/webrtc/PeerConnection.java
index 5f526196ee5a4ec6a2647bda0644e56c0a16c5b3..c112d27052ba0d87452cafa635d2e270ae46e44b 100644
--- a/webrtc/api/java/src/org/webrtc/PeerConnection.java
+++ b/webrtc/api/java/src/org/webrtc/PeerConnection.java
@@ -139,6 +139,7 @@ public class PeerConnection {
     public int iceBackupCandidatePairPingInterval;
     public KeyType keyType;
     public ContinualGatheringPolicy continualGatheringPolicy;
+    public int iceCandidatePoolSize;
 
     public RTCConfiguration(List<IceServer> iceServers) {
       iceTransportsType = IceTransportsType.ALL;
@@ -152,6 +153,7 @@ public class PeerConnection {
       iceBackupCandidatePairPingInterval = -1;
       keyType = KeyType.ECDSA;
       continualGatheringPolicy = ContinualGatheringPolicy.GATHER_ONCE;
+      iceCandidatePoolSize = 0;
     }
   };