Update mojo sdk to rev afb4440fd5a10cba980878c326180b7ad7960480

mojo/public/dart/core.dart

Index: mojo/public/dart/core.dart
diff --git a/mojo/public/dart/core.dart b/mojo/public/dart/core.dart
new file mode 100644
index 0000000000000000000000000000000000000000..5159440b2dccfbebba09a2034d063bcddb8a71a5
--- /dev/null
+++ b/mojo/public/dart/core.dart
@@ -0,0 +1,19 @@
+// 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.
+
+library core;
+
+import 'dart:async';
+import 'dart:core';
+import 'dart:isolate';
+import 'dart:typed_data';
+import 'dart-ext:src/mojo_dart_core';
+
+part 'src/buffer.dart';
+part 'src/data_pipe.dart';
+part 'src/handle.dart';
+part 'src/message_pipe.dart';
+part 'src/types.dart';
+
+void mojoSystemThunksSet(int thunks) native "MojoSystemThunks_Set";