Adding domain and facade supporting classes for remoting iOS app.

remoting/client/ios/facade/remoting_service.h

Index: remoting/client/ios/facade/remoting_service.h
diff --git a/remoting/client/ios/facade/remoting_service.h b/remoting/client/ios/facade/remoting_service.h
new file mode 100644
index 0000000000000000000000000000000000000000..0a7ef786603e8aba7bf881d5caea5b77635124e3
--- /dev/null
+++ b/remoting/client/ios/facade/remoting_service.h
@@ -0,0 +1,22 @@
+// 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_FACADE_REMOTING_SERCICE_H_
+#define REMOTING_CLIENT_IOS_FACADE_REMOTING_SERCICE_H_
+
+#import "remoting/client/ios/domain/host.h"
+#import "remoting/client/ios/domain/user.h"
+
+@interface RemotingService : NSObject
+
++ (RemotingService*)sharedInstance;
+
+- (BOOL)isAuthenticated;
+- (void)authenticateWithAccessCode:(NSString*)accessCode;

[Sergey Ulanov, 2017/02/09 00:52:37]

In OAuth it's usually referred to as access token, not access code. Access code
can be confused with 12-digit number in It2Me.
Also this method name is confusing. Should it be called setAccessToken? 

[nicholss, 2017/02/09 16:12:40]

I was attempting to name this component:
https://tools.ietf.org/html/rfc6749#section-4.1.3 in other places in the code
base we call it an access_code. It seems according to the spec it is called
"authorization_code" so I can change to that.

+- (User*)getUser;
+- (NSArray<Host*>*)getHosts;

[Sergey Ulanov, 2017/02/09 00:52:37]

This interface handles getting user info and getting host list from the
directory. These 2 calls are handled by 2 different services, so I'm not sure if
putting it all in the same class is the right thing to do. User-info query is
already handled by OAuth layer, see
https://codesearch.chromium.org/chromium/src/google_apis/gaia/gaia_oauth_clie...
, so I'm not sure we need it here.

[Sergey Ulanov, 2017/02/09 00:52:37]

Will this the thread while the request is pending?

[nicholss, 2017/02/09 16:12:40]

Yes, combining two services into one common endpoint is the design pattern
called 'facade'. I am trying to minimize the touch points between C++ and Obj-C.

[nicholss, 2017/02/09 16:12:40]

The intent is to make a call into a C++ class that will handle the threading.
The code might change to be callback or emitter based rather than blocking as it
is now.

+
+@end
+
+#endif  // REMOTING_CLIENT_IOS_FACADE_REMOTING_SERCICE_H_