Revert of Rename AppRTCDemo on Android and iOS to AppRTCMobile

webrtc/examples/objc/AppRTCMobile/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.
- */
-
-#import <Foundation/Foundation.h>
-
-#import "ARDSignalingChannel.h"
-
-// Wraps a WebSocket connection to the AppRTC WebSocket server.
-@interface ARDWebSocketChannel : NSObject <ARDSignalingChannel>
-
-- (instancetype)initWithURL:(NSURL *)url
-                    restURL:(NSURL *)restURL
-                   delegate:(id<ARDSignalingChannelDelegate>)delegate;
-
-// 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
-
-// Loopback mode is used to cause the client to connect to itself for testing.
-// A second web socket connection is established simulating the other client.
-// Any messages received are sent back to the WebSocket server after modifying
-// them as appropriate.
-@interface ARDLoopbackWebSocketChannel : ARDWebSocketChannel
-
-- (instancetype)initWithURL:(NSURL *)url restURL:(NSURL *)restURL;
-
-@end