Remove crufty bridge code from old CRD iOS app.

remoting/client/ios/bridge/host_proxy.h

-// Copyright 2016 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef REMOTING_CLIENT_IOS_BRIDGE_CLIENT_PROXY_H_
-#define REMOTING_CLIENT_IOS_BRIDGE_CLIENT_PROXY_H_
-
-#import <Foundation/Foundation.h>
-#import <UIKit/UIKit.h>
-
-#include <memory>
-
-#import "remoting/client/ios/bridge/client_proxy_delegate_wrapper.h"
-
-#include "base/memory/ref_counted.h"
-#include "third_party/webrtc/modules/desktop_capture/desktop_geometry.h"
-
-namespace remoting {
-class ClientInstance;
-class ClientProxy;
-}  // namespace remoting
-
-// HostProxy is one channel of a bridge from the UI Application (CLIENT) and the
-// common Chromoting protocol (HOST). HostProxy proxies message from the UI
-// application to the host. The reverse channel, ClientProxy, is owned by the
-// HostProxy to control deconstruction order, but is shared with the
-// ClientInstance to perform work.
-
-@interface HostProxy : NSObject {
- @private
-  // Host to Client channel.
-  std::unique_ptr<remoting::ClientProxy> _hostToClientChannel;
-  // Client to Host channel, must be released before |_hostToClientChannel|.
-  scoped_refptr<remoting::ClientInstance> _clientToHostChannel;
-  // Connection state.
-  BOOL _isConnected;
-}
-
-// TRUE when a connection has been established successfully.
-- (BOOL)isConnected;
-
-// Forwards credentials from CLIENT and to HOST and begins establishing a
-// connection.
-- (void)connectToHost:(NSString*)username
-            authToken:(NSString*)token
-             jabberId:(NSString*)jid
-               hostId:(NSString*)hostId
-            publicKey:(NSString*)hostPublicKey
-             delegate:(id<ClientProxyDelegate>)delegate;
-
-// Report from CLIENT with the user's PIN.
-- (void)authenticationResponse:(NSString*)pin createPairing:(BOOL)createPairing;
-
-// CLIENT initiated disconnection.
-- (void)disconnectFromHost;
-
-// Report from CLIENT of mouse input.
-- (void)mouseAction:(const webrtc::DesktopVector&)position
-         wheelDelta:(const webrtc::DesktopVector&)wheelDelta
-        whichButton:(NSInteger)buttonPressed
-         buttonDown:(BOOL)buttonIsDown;
-
-// Report from CLIENT of keyboard input.
-- (void)keyboardAction:(NSInteger)keyCode keyDown:(BOOL)keyIsDown;
-
-@end
-
-#endif  // REMOTING_CLIENT_IOS_BRIDGE_CLIENT_PROXY_H_