Dart: Better handle leak checks. close() is async.

mojo/dart/embedder/test/run_dart_tests.cc

 // Copyright 2014 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.
 
 #include "base/bind.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/logging.h"
 #include "base/path_service.h"
 #include "crypto/random.h"
@@ skipping 103 matching lines @@
 }
 
 TEST(DartTest, codec_test) {
   RunTest("codec_test.dart", false, nullptr, 0);
 }
 
 TEST(DartTest, handle_watcher_test) {
   RunTest("handle_watcher_test.dart", false, nullptr, 0);
 }
 
-TEST(DartTest, interface_test) {
-  RunTest("interface_test.dart", false, nullptr, 0);
-}
-
 TEST(DartTest, bindings_generation_test) {
   RunTest("bindings_generation_test.dart", false, nullptr, 0);
 }
 
 TEST(DartTest, compile_all_interfaces_test) {
   RunTest("compile_all_interfaces_test.dart", true, nullptr, 0);
 }
 
 TEST(DartTest, uri_base_test) {
   RunTest("uri_base_test.dart", true, nullptr, 0);
 }
 
 TEST(DartTest, handle_finalizer_test) {
   const int kNumArgs = 2;
   const char* args[kNumArgs];
   args[0] = "--new-gen-semi-max-size=1";
   args[1] = "--old_gen_growth_rate=1";
   RunTest("handle_finalizer_test.dart", false, args, kNumArgs);
 }
 
 }  // namespace
 }  // namespace dart
 }  // namespace mojo