Adding session object for iOS to integerate client sessions.

remoting/client/ios/session/remoting_client.mm

+// 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.
+
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
+#import "remoting/client/ios/session/client.h"
+
+#import "base/mac/bind_objc_block.h"
+
+#include "remoting/client/chromoting_client_runtime.h"
+#include "remoting/client/connect_to_host_info.h"
+
+@interface RemotingClient () {
+  GlDisplayHandler* _displayHandler;
+  remoting::ChromotingClientRuntime* _runtime;
+  std::unique_ptr<remoting::ChromotingSession> _session;
+  remoting::RemotingClientSessonDelegate* _sessonDelegate;
+}
+@end
+
+@implementation RemotingClient
+
+- (instancetype)init {
+  self = [super init];
+  if (self) {
+    _runtime = ChromotingClientRuntime::GetInstance();
+    _sessonDelegate = new remoting::RemotingClientSessonDelegate(self);
+  }
+  return self;
+}
+
+- (void)connectToHost:(const remoting::ConnectToHostInfo&)info {
+  _displayHandler = [[GlDisplayHandler alloc] initWithRuntime:_runtime];
+
+  protocol::ClientAuthenticationConfig client_auth_config;
+  client_auth_config.host_id = info.host_id;
+  client_auth_config.pairing_client_id = info.pairing_id;
+  client_auth_config.pairing_secret = info.pairing_secret;
+  client_auth_config.fetch_secret_callback = base::BindBlockArc(
+      ^(bool pairing_supported,
+        const SecretFetchedCallback& secret_fetched_callback) {
+        NSLog(@"TODO(nicholss): Implement the FetchSecretCallback.");

[Yuwei, 2017/04/08 02:42:37]

Just curious why do you log out the TODO rather than writing it as a comment
O_o? Also why using NSLog instead of the LOG(level) macros?

[nicholss, 2017/04/10 16:17:09]

I wanted the TODO in the logs while I am working on the app so I can remember
there are sections of code that need to be worked on still. I picked up the tip
from another team. I could use LOG but I figured NSLog was ok for this because
it will be replaced before the application is allowed to be called finished.
Just a comment TODO might not remind you that a flow in your application is
missing.

+      });
+
+  // TODO(nicholss): Add audio support to iOS.
+  base::WeakPtr<protocol::AudioStub> audioPlayer = nullptr;
+
+  _session.reset(new remoting::ChromotingSession(
+      _sessonDelegate->GetWeakPtr(), [_displayHandler CreateCursorShapeStub],
+      [_displayHandler CreateVideoRenderer], audioPlayer, info,
+      client_auth_config));
+  _session->Connect();
+}
+
+#pragma mark - ChromotingSession::Delegate
+
+- (void)onConnectionState:(protocol::ConnectionToHost::State)state
+                    error:(protocol::ErrorCode)error {
+  NSLog(@"TODO(nicholss): implement this.");
+}
+
+- (void)commitPairingCredentialsForHost:(NSString*)host
+                                     id:(NSString*)id
+                                 secret:(NSString*)secret {
+  NSLog(@"TODO(nicholss): implement this.");
+}
+
+- (void)fetchThirdPartyTokenForUrl:(NSString*)tokenUrl
+                          clientId:(NSString*)clientId
+                             scope:(NSString*)scope {
+  NSLog(@"TODO(nicholss): implement this.");
+}
+
+- (void)setCapabilities:(NSString*)capabilities {
+  NSLog(@"TODO(nicholss): implement this.");
+}
+
+- (void)handleExtensionMessageOfType:(NSString*)type
+                             message:(NSString*)message {
+  NSLog(@"TODO(nicholss): implement this.");
+}
+
+@end