Loopback mode for AppRTCDemo on iOS.

webrtc/examples/objc/AppRTCDemo/ARDWebSocketChannel.h

 /*
  *  Copyright 2014 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.
  */
 
@@ skipping 11 matching lines @@
 // Registers with the WebSocket server for the given room and client id once
 // the web socket connection is open.
 - (void)registerForRoomId:(NSString *)roomId
                  clientId:(NSString *)clientId;
 
 // Sends message over the WebSocket connection if registered, otherwise POSTs to
 // the web socket server instead.
 - (void)sendMessage:(ARDSignalingMessage *)message;
 
 @end
+
+
+// Sends received messages back to the WebSocket server simulating
+// another client.

[tkchin_webrtc, 2015/09/11 17:53:53]

Can you elaborate on what it actually does? Loopback will likely confuse people
who aren't already familiar with signaling.

[Chuck, 2015/09/28 16:26:40]

Done.

+@interface ARDLoopbackWebSocketChannel : ARDWebSocketChannel
+
+- (instancetype)initWithURL:(NSURL *)url restURL:(NSURL *)restURL;
+
+@end