Dart: Refactors Proxies

mojo/dart/apptests/test_apps/pingpong_target/lib/main.dart

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 import 'dart:async';
 
 import 'package:mojo/application.dart';
 import 'package:mojo/bindings.dart';
 import 'package:mojo/core.dart';
 
 import 'package:_mojo_for_test_only/test/pingpong_service.mojom.dart';
 
 class PingPongServiceImpl implements PingPongService {
   PingPongServiceStub _stub;
   Application _application;
   PingPongClientProxy _pingPongClient;
 
   PingPongServiceImpl(this._application, MojoMessagePipeEndpoint endpoint) {
     _stub = new PingPongServiceStub.fromEndpoint(endpoint, this);
   }
 
   PingPongServiceImpl.fromStub(this._stub) {
     _stub.impl = this;
   }
 
-  void setClient(ProxyBase proxyBase) {
+  void setClient(Proxy proxy) {
     assert(_pingPongClient == null);
-    _pingPongClient = proxyBase;
+    _pingPongClient = proxy;
   }
 
-  void ping(int pingValue) => _pingPongClient.ptr.pong(pingValue + 1);
+  void ping(int pingValue) => _pingPongClient.pong(pingValue + 1);
 
   // These methods are unimplemented; they merely throw on invocation.
   dynamic pingTargetUrl(String url, int count, [Function responseFactory]) =>
       throw "Unimplemented";
   dynamic pingTargetService(
       Object service, int count, [Function responseFactory]) =>
       throw "Unimplemented";
   dynamic getPingPongServiceDelayed(
       Object service, [Function responseFactory]) =>
       throw "Unimplemented";
@@ skipping 19 matching lines @@
   Future closeApplication() async {
     await close();
     MojoHandle.reportLeakedHandles();
   }
 }
 
 main(List args, Object handleToken) {
   MojoHandle appHandle = new MojoHandle(handleToken);
   new PingPongApplication.fromHandle(appHandle);
 }