Dart: Use a RawReceivePort to receive events for Mojo handles.

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/path_service.h"
 #include "base/rand_util.h"
 #include "mojo/dart/embedder/dart_controller.h"
 #include "mojo/public/c/system/types.h"
@@ skipping 99 matching lines @@
 }
 
 TEST(DartTest, core_test) {
   RunTest("core_test.dart");
 }
 
 TEST(DartTest, codec_test) {
   RunTest("codec_test.dart");
 }
 
-TEST(DartTest, handle_watcher_test) {
-  RunTest("handle_watcher_test.dart");
-}
-
 TEST(DartTest, bindings_generation_test) {
   RunTest("bindings_generation_test.dart");
 }
 
 TEST(DartTest, compile_all_interfaces_test) {
   const char* args[] = { "--compile_all" };
   RunTest("compile_all_interfaces_test.dart", &args[0], 1);
 }
 
 TEST(DartTest, uri_base_test) {
@@ skipping 16 matching lines @@
   RunTest("handle_finalizer_test.dart", args, kNumArgs);
 }
 
 TEST(DartTest, unhandled_exception_test) {
   RunTest("unhandled_exception_test.dart", nullptr, 0, true, 2);
 }
 
 }  // namespace
 }  // namespace dart
 }  // namespace mojo