Update API for Objective-C RTCConfiguration.

webrtc/api/objc/RTCConfiguration.h

+/*
+ *  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 <Foundation/Foundation.h>
+
+@class RTCIceServer;
+
+/**
+ * Represents the ice transport policy. This exposes the same states in C++,
+ * which include one more state than what exists in the W3C spec.
+ */
+typedef NS_ENUM(NSInteger, RTCIceTransportPolicy) {
+  RTCIceTransportPolicyNone,
+  RTCIceTransportPolicyRelay,
+  RTCIceTransportPolicyNoHost,
+  RTCIceTransportPolicyAll
+};
+
+/** Represents the bundle policy. */
+typedef NS_ENUM(NSInteger, RTCBundlePolicy) {
+  RTCBundlePolicyBalanced,
+  RTCBundlePolicyMaxCompat,
+  RTCBundlePolicyMaxBundle
+};
+
+/** Represents the rtcp mux policy. */
+typedef NS_ENUM(NSInteger, RTCRtcpMuxPolicy) {
+  RTCRtcpMuxPolicyNegotiate,
+  RTCRtcpMuxPolicyRequire
+};
+
+/** Represents the tcp candidate policy. */
+typedef NS_ENUM(NSInteger, RTCTcpCandidatePolicy) {
+  RTCTcpCandidatePolicyEnabled,
+  RTCTcpCandidatePolicyDisabled
+};
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface RTCConfiguration : NSObject
+
+/** An array of Ice Servers available to be used by ICE. */
+@property(nonatomic, copy) NSArray<RTCIceServer *> *iceServers;
+
+/** Which candidates the ICE agent is allowed to use. The W3C calls it
+ * |iceTransportPolicy|, while in C++ it is called |type|. */
+@property(nonatomic, assign) RTCIceTransportPolicy iceTransportPolicy;
+
+/** The media-bundling policy to use when gathering ICE candidates. */
+@property(nonatomic, assign) RTCBundlePolicy bundlePolicy;
+
+/** The rtcp-mux policy to use when gathering ICE candidates. */
+@property(nonatomic, assign) RTCRtcpMuxPolicy rtcpMuxPolicy;
+@property(nonatomic, assign) RTCTcpCandidatePolicy tcpCandidatePolicy;
+@property(nonatomic, assign) int audioJitterBufferMaxPackets;
+@property(nonatomic, assign) int iceConnectionReceivingTimeout;
+@property(nonatomic, assign) int iceBackupCandidatePairPingInterval;
+
+- (instancetype)init NS_DESIGNATED_INITIALIZER;
+
+- (instancetype)initWithIceServers:
+    (nullable NSArray<RTCIceServer *> *)iceServers
+                iceTransportPolicy:(RTCIceTransportPolicy)iceTransportPolicy
+                      bundlePolicy:(RTCBundlePolicy)bundlePolicy
+                     rtcpMuxPolicy:(RTCRtcpMuxPolicy)rtcpMuxPolicy
+                tcpCandidatePolicy:(RTCTcpCandidatePolicy)tcpCandidatePolicy
+       audioJitterBufferMaxPackets:(int)audioJitterBufferMaxPackets
+     iceConnectionReceivingTimeout:(int)iceConnectionReceivingTimeout
+iceBackupCandidatePairPingInterval:(int)iceBackupCandidatePairPingInterval;
+
+@end
+
+NS_ASSUME_NONNULL_END