Minor ObjC header updates.

webrtc/api/objc/RTCDataChannelConfiguration.mm

 /*
  *  Copyright 2015 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #import "RTCDataChannelConfiguration.h"
 
 #import "webrtc/api/objc/RTCDataChannelConfiguration+Private.h"
 #import "webrtc/base/objc/NSString+StdString.h"
 
 @implementation RTCDataChannelConfiguration
 
 @synthesize nativeDataChannelInit = _nativeDataChannelInit;
 
 - (BOOL)isOrdered {
   return _nativeDataChannelInit.ordered;
 }
 
 - (void)setIsOrdered:(BOOL)isOrdered {
   _nativeDataChannelInit.ordered = isOrdered;
 }
 
+- (NSInteger)maxRetransmitTimeMs {
+  return self.maxPacketLifeTime;
+}
+
+- (void)setMaxRetransmitTimeMs:(NSInteger)maxRetransmitTimeMs {
+  self.maxPacketLifeTime = maxRetransmitTimeMs;
+}
+
 - (int)maxPacketLifeTime {
   return _nativeDataChannelInit.maxRetransmitTime;
 }
 
 - (void)setMaxPacketLifeTime:(int)maxPacketLifeTime {
   _nativeDataChannelInit.maxRetransmitTime = maxPacketLifeTime;
 }
 
 - (int)maxRetransmits {
   return _nativeDataChannelInit.maxRetransmits;
@@ skipping 13 matching lines @@
 
 - (BOOL)isNegotiated {
   return _nativeDataChannelInit.negotiated;
 }
 
 - (void)setIsNegotiated:(BOOL)isNegotiated {
   _nativeDataChannelInit.negotiated = isNegotiated;
 }
 
 - (int)streamId {
+  return self.channelId;
+}
+
+- (void)setStreamId:(int)streamId {
+  self.channelId = streamId;
+}
+
+- (int)channelId {
   return _nativeDataChannelInit.id;
 }
 
-- (void)setStreamId:(int)streamId {
-  _nativeDataChannelInit.id = streamId;
+- (void)setChannelId:(int)channelId {
+  _nativeDataChannelInit.id = channelId;
 }
 
-@end
+@end