updated variable to be type

Author: jyameo

dwds/lib/src/dwds_vm_client.dart

@@ -85,8 +85,7 @@ class ChromeDwdsVmClient implements DwdsVmClient {
     DwdsStats dwdsStats,
     Uri? ddsUri,
   ) async {
-    final chromeProxyService =
-        debugService.chromeProxyService as ChromeProxyService;
+    final chromeProxyService = debugService.chromeProxyService;
     final responseController = StreamController<VmResponse>();
     final responseSink = responseController.sink;
     // Response stream must be a broadcast stream so that it can have multiple

dwds/lib/src/services/app_debug_services.dart

@@ -4,8 +4,6 @@
 
 import 'package:dwds/src/dwds_vm_client.dart';
 import 'package:dwds/src/events.dart';
-import 'package:dwds/src/services/chrome_proxy_service.dart'
-    show ChromeProxyService;
 import 'package:dwds/src/services/debug_service.dart';
 import 'package:dwds/src/services/proxy_service.dart';
 
@@ -56,8 +54,7 @@ class ChromeAppDebugServices implements AppDebugServices {
   set connectedInstanceId(String? id) => _connectedInstanceId = id;
 
   @override
-  ProxyService get proxyService =>
-      debugService.chromeProxyService as ChromeProxyService;
+  ProxyService get proxyService => debugService.chromeProxyService;
 
   @override
   Future<void> close() =>
@@ -69,7 +66,8 @@ class WebSocketAppDebugServices implements AppDebugServices {
   final WebSocketDebugService _debugService;
   final WebSocketDwdsVmClient _dwdsVmClient;
   Future<void>? _closed;
-  String? _connectedInstanceId;
+  @override
+  String? connectedInstanceId;
 
   WebSocketAppDebugServices(this._debugService, this._dwdsVmClient);
 
@@ -79,12 +77,6 @@ class WebSocketAppDebugServices implements AppDebugServices {
   @override
   DwdsVmClient get dwdsVmClient => _dwdsVmClient;
 
-  @override
-  String? get connectedInstanceId => _connectedInstanceId;
-
-  @override
-  set connectedInstanceId(String? id) => _connectedInstanceId = id;
-
   // WebSocket-only service - Chrome/DDS features not available
   @override
   DwdsStats? get dwdsStats => null;

dwds/lib/src/services/debug_service.dart

@@ -143,7 +143,7 @@ abstract class DebugService {
 class ChromeDebugService implements DebugService {
   static String? _ddsUri;
 
-  final VmServiceInterface chromeProxyService;
+  final ChromeProxyService chromeProxyService;
   @override
   final String hostname;
   @override