[extension_google_sign_in_as_googleapis_auth] Update example... (#311)

* [extension_google_sign_in_as_googleapis_auth] Update example to use scope from the People API

Make GoogleSignIn instance final
To use scope from the People API
Remove x bit from readme and pubspec.yaml
Add link to root repo README

* Update version in pubspec, and CHANGELOG.

README.md

@@ -34,6 +34,7 @@ These are the available packages in this repository.
 | Plugin | Pub |
 |--------|-----|
 | [animations](./packages/animations/) | [![pub package](https://img.shields.io/pub/v/animations.svg)](https://pub.dev/packages/animations) |
+| [extension_google_sign_in_as_googleapis_auth](./packages/extension_google_sign_in_as_googleapis_auth/) | [![pub package](https://img.shields.io/pub/v/extension_google_sign_in_as_googleapis_auth.svg)](https://pub.dev/packages/extension_google_sign_in_as_googleapis_auth) |
 | [fuchsia_ctl](./packages/fuchsia_ctl/) | [![pub package](https://img.shields.io/pub/v/fuchsia_ctl.svg)](https://pub.dev/packages/fuchsia_ctl) |
 | [multicast_dns](./packages/multicast_dns/) | [![pub package](https://img.shields.io/pub/v/multicast_dns.svg)](https://pub.dev/packages/multicast_dns) |
 | [palette_generator](./packages/palette_generator/) | [![pub package](https://img.shields.io/pub/v/palette_generator.svg)](https://pub.dartlang.org/packages/palette_generator) |

packages/extension_google_sign_in_as_googleapis_auth/CHANGELOG.md

@@ -1,3 +1,8 @@
+## 2.0.2
+
+* Update example to use a scope name as a constant from the People API, instead of a hardcoded string.
+* Remove `x` bit from README and pubspec.yaml
+
 ## 2.0.1
 
 * Rehomed to `flutter/packages` repository.

packages/extension_google_sign_in_as_googleapis_auth/example/lib/main.dart

@@ -10,11 +10,8 @@ import 'package:google_sign_in/google_sign_in.dart';
 import 'package:extension_google_sign_in_as_googleapis_auth/extension_google_sign_in_as_googleapis_auth.dart';
 import 'package:googleapis/people/v1.dart';
 
-GoogleSignIn _googleSignIn = GoogleSignIn(
-  scopes: <String>[
-    'email',
-    'https://www.googleapis.com/auth/contacts.readonly',
-  ],
+final GoogleSignIn _googleSignIn = GoogleSignIn(
+  scopes: <String>[PeopleServiceApi.contactsReadonlyScope],
 );
 
 void main() {

packages/extension_google_sign_in_as_googleapis_auth/pubspec.yaml

@@ -6,7 +6,7 @@
 
 name: extension_google_sign_in_as_googleapis_auth
 description: A bridge package between google_sign_in and googleapis_auth, to create Authenticated Clients from google_sign_in user credentials.
-version: 2.0.1
+version: 2.0.2
 repository: https://github.com/flutter/packages/tree/master/packages/extension_google_sign_in_as_googleapis_auth
 
 dependencies: