stop using deprecated method (#1394)

packages/devtools_app/lib/src/flutter/controllers.dart

diff --git a/packages/devtools_app/lib/src/flutter/controllers.dart b/packages/devtools_app/lib/src/flutter/controllers.dart
index afd0f2c..a40eaae 100644
--- a/packages/devtools_app/lib/src/flutter/controllers.dart
+++ b/packages/devtools_app/lib/src/flutter/controllers.dart
@@ -66,9 +66,9 @@
   _ControllersState createState() => _ControllersState();
 
   static ProvidedControllers of(BuildContext context) {
-    final _InheritedProvider inherited =
-        context.dependOnInheritedWidgetOfExactType(aspect: _InheritedProvider);
-    return inherited.data;
+    final provider =
+        context.dependOnInheritedWidgetOfExactType<_InheritedProvider>();
+    return provider.data;
   }
 }