Change appConfig to use a class (and still useValue)

Author: kwalrath

public/docs/_examples/dependency-injection/dart/lib/app_component.dart

@@ -37,16 +37,16 @@ import 'providers_component.dart';
     providers: const [
       Logger,
       UserService,
-      const Provider(appConfig, useValue: config1)]
+      const Provider(AppConfig, useValue: config1)]
 // #enddocregion providers
 )
 class AppComponent {
   final UserService _userService;
   final String title;
 
   //#docregion ctor
-  AppComponent(@Inject(appConfig) Map config, this._userService) :
-        title = config['title'];
+  AppComponent(AppConfig config, this._userService)
+      : title = config.title;
   // #enddocregion ctor
 
   bool get isAuthorized {

public/docs/_examples/dependency-injection/dart/lib/app_component_2.dart

@@ -22,13 +22,13 @@ import 'logger_service.dart';
     providers: const [
       Logger,
       // #docregion provider-config
-      const Provider(appConfig, useValue: config1)
+      const Provider(AppConfig, useValue: config1)
     ])
 class AppComponent {
   final String title;
 
   // #docregion ctor
-  AppComponent(@Inject(appConfig) Map config)
-      : title = config['title'];
+  AppComponent(AppConfig config)
+      : title = config.title;
   // #enddocregion
 }

public/docs/_examples/dependency-injection/dart/lib/app_config.dart

@@ -2,12 +2,14 @@
 // #docregion token
 import 'package:angular2/core.dart';
 
-const appConfig = const OpaqueToken('app.config');
-// #enddocregion token
-
 //#docregion config
-const config1 = const <String, String>{
-  'apiEndpoint': 'api.heroes.com',
-  'title': 'Dependency Injection'
-};
+@Injectable()
+class AppConfig {
+  final apiEndpoint;
+  final String title;
+
+  const AppConfig(this.apiEndpoint, this.title);
+}
+
+const config1 = const AppConfig('api.heroes.com', 'Dependency Injection');
 //#enddocregion config

public/docs/_examples/dependency-injection/dart/lib/providers_component.dart

@@ -221,21 +221,21 @@ class ProviderComponent8 {
     selector: 'provider-9',
     template: '{{log}}',
 // #docregion providers-9
-    providers: const [const Provider(appConfig, useValue: config1)]
+    providers: const [const Provider(AppConfig, useValue: config1)]
 // . . .
 // #enddocregion providers-9
 )
 class ProviderComponent9 implements OnInit {
-  final Map<String, String> _config;
+  AppConfig _config;
   String log;
 
   // #docregion providers-9
-  ProviderComponent9(@Inject(appConfig) this._config);
+  ProviderComponent9(AppConfig this._config);
 
   // #enddocregion providers-9
   @override
   void ngOnInit() {
-    log = 'appConfigToken Application title is ${_config["title"]}';
+    log = 'appConfigToken Application title is ${_config.title}';
   }
 }