Dart: Refactors Proxies

mojo/dart/apptests/dart_apptests/lib/src/connect_to_loader_apptests.dart

Index: mojo/dart/apptests/dart_apptests/lib/src/connect_to_loader_apptests.dart
diff --git a/mojo/dart/apptests/dart_apptests/lib/src/connect_to_loader_apptests.dart b/mojo/dart/apptests/dart_apptests/lib/src/connect_to_loader_apptests.dart
index e5a9008865ce1cef92631b5ed7bad0d9f6b3e11b..0f4cee442f30b47d8b3c70cdec290e9b82243aab 100644
--- a/mojo/dart/apptests/dart_apptests/lib/src/connect_to_loader_apptests.dart
+++ b/mojo/dart/apptests/dart_apptests/lib/src/connect_to_loader_apptests.dart
@@ -20,7 +20,7 @@ connectToLoaderApptests(Application application, String url) {
         "mojo:url_response_disk_cache", diskCacheProxy);
     var response = new UrlResponse();
     response.url = 'http://www.example.com';
-    await diskCacheProxy.ptr.updateAndGet(response);
+    await diskCacheProxy.updateAndGet(response);
     await diskCacheProxy.close();
   });
 }