Add ice_candidate_pool_size to Obj-C and Java RTCConfiguration.

Review-Url: https://codereview.webrtc.org/1986073004
Cr-Commit-Position: refs/heads/master@{#12801}

webrtc/api/java/jni/peerconnection_jni.cc

@@ -1545,6 +1545,9 @@ static void JavaRTCConfigurationToJsepRTCConfiguration(
   jobject j_continual_gathering_policy =
       GetObjectField(jni, j_rtc_config, j_continual_gathering_policy_id);
 
+  jfieldID j_ice_candidate_pool_size_id =
+      GetFieldID(jni, j_rtc_config_class, "iceCandidatePoolSize", "I");
+
   rtc_config->type =
       JavaIceTransportsTypeToNativeType(jni, j_ice_transports_type);
   rtc_config->bundle_policy =
@@ -1565,6 +1568,8 @@ static void JavaRTCConfigurationToJsepRTCConfiguration(
   rtc_config->continual_gathering_policy =
       JavaContinualGatheringPolicyToNativeType(
           jni, j_continual_gathering_policy);
+  rtc_config->ice_candidate_pool_size =
+      GetIntField(jni, j_rtc_config, j_ice_candidate_pool_size_id);
 }
 
 JOW(jlong, PeerConnectionFactory_nativeCreatePeerConnection)(

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;
     }
   };
 

webrtc/sdk/objc/Framework/Classes/RTCConfiguration.mm

@@ -31,6 +31,7 @@
 @synthesize iceBackupCandidatePairPingInterval =
     _iceBackupCandidatePairPingInterval;
 @synthesize keyType = _keyType;
+@synthesize iceCandidatePoolSize = _iceCandidatePoolSize;
 
 - (instancetype)init {
   if (self = [super init]) {
@@ -54,13 +55,14 @@
     _iceBackupCandidatePairPingInterval =
         config.ice_backup_candidate_pair_ping_interval;
     _keyType = RTCEncryptionKeyTypeECDSA;
+    _iceCandidatePoolSize = config.ice_candidate_pool_size;
   }
   return self;
 }
 
 - (NSString *)description {
   return [NSString stringWithFormat:
-      @"RTCConfiguration: {\n%@\n%@\n%@\n%@\n%@\n%@\n%d\n%d\n%d\n}\n",
+      @"RTCConfiguration: {\n%@\n%@\n%@\n%@\n%@\n%@\n%d\n%d\n%d\n%d\n}\n",
       _iceServers,
       [[self class] stringForTransportPolicy:_iceTransportPolicy],
       [[self class] stringForBundlePolicy:_bundlePolicy],
@@ -70,7 +72,8 @@
           stringForContinualGatheringPolicy:_continualGatheringPolicy],
       _audioJitterBufferMaxPackets,
       _iceConnectionReceivingTimeout,
-      _iceBackupCandidatePairPingInterval];
+      _iceBackupCandidatePairPingInterval,
+      _iceCandidatePoolSize];
 }
 
 #pragma mark - Private
@@ -111,6 +114,7 @@
     }
     nativeConfig->certificates.push_back(certificate);
   }
+  nativeConfig->ice_candidate_pool_size = _iceCandidatePoolSize;
 
   return nativeConfig.release();
 }

webrtc/sdk/objc/Framework/Headers/WebRTC/RTCConfiguration.h

@@ -83,6 +83,9 @@ RTC_EXPORT
 /** Key type used to generate SSL identity. Default is ECDSA. */
 @property(nonatomic, assign) RTCEncryptionKeyType keyType;
 
+/** ICE candidate pool size as defined in JSEP. Default is 0. */
+@property(nonatomic, assign) int iceCandidatePoolSize;
+
 - (instancetype)init NS_DESIGNATED_INITIALIZER;
 
 @end