Updating Pin Entry View and creating Connection Status View.

remoting/client/ios/session/remoting_client.h

 // Copyright 2017 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_SESSION_REMOTING_CLIENT_H_
 #define REMOTING_CLIENT_IOS_SESSION_REMOTING_CLIENT_H_
 
 #import <Foundation/Foundation.h>
 
-#import "remoting/client/ios/display/gl_display_handler.h"
+#include "remoting/protocol/connection_to_host.h"
 
-#include "remoting/protocol/connection_to_host.h"
-#include "remoting/protocol/session.h"
+@class HostInfo;
+@class GlDisplayHandler;
 
-namespace remoting {
-struct ConnectToHostInfo;
-}
+// A list of notifications that will be sent out for different types of Remoting
+// Client events.
+//
+extern NSString* const kHostSessionStatusChanged;
+extern NSString* const kHostSessionPinProvided;
 
+// List of keys in user info from events.
+extern NSString* const kSessionDetails;
+extern NSString* const kSessonStateErrorCode;
+extern NSString* const kHostSessionPin;
+
+// Remoting Client is the entry point for starting a session with a remote
+// host. This object should not be reused. Remoting Client will use the default
+// NSNotificationCenter to signal session state changes using the key
+// |kHostSessionStatusChanged|. It expects to receive an event back on
+// |kHostSessionPinProvided| when the session is asking for a PIN authenication.
 @interface RemotingClient : NSObject
 
-- (void)connectToHost:(const remoting::ConnectToHostInfo&)info;
+// Connect to a given host.
+// |hostInfo| is all the details around a host.
+// |username| is the username to be used when connecting.
+// |accessToken| is the oAuth access token to provided to create the session.
+- (void)connectToHost:(HostInfo*)hostInfo
+             username:(NSString*)username
+          accessToken:(NSString*)accessToken;
 
 // Mirrors the native client session delegate interface:
 
 - (void)onConnectionState:(remoting::protocol::ConnectionToHost::State)state
                     error:(remoting::protocol::ErrorCode)error;
 
 - (void)commitPairingCredentialsForHost:(NSString*)host
                                      id:(NSString*)id
                                  secret:(NSString*)secret;
 
 - (void)fetchThirdPartyTokenForUrl:(NSString*)tokenUrl
                           clientId:(NSString*)clinetId
                              scope:(NSString*)scope;
 
 - (void)setCapabilities:(NSString*)capabilities;
 
 - (void)handleExtensionMessageOfType:(NSString*)type message:(NSString*)message;
 
+// The display handler tied to the remoting client used to display the host.
 @property(nonatomic, strong) GlDisplayHandler* displayHandler;
+// The host info used to make the remoting client connection.
+@property(nonatomic, readonly) HostInfo* hostInfo;
 
 @end
 
 #endif  // REMOTING_CLIENT_IOS_SESSION_REMOTING_CLIENT_H_