Implement Asynchronous Module Definition API for Mojo

gin/modules/module_registry_unittests.js

+// Copyright 2013 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.
+
+define("module0", function() {
+  return {
+    "foo": "bar",
+  }
+});
+
+define("module2", [
+    "gtest",
+    "module0",
+    "module1"
+  ], function(gtest, module0, module1) {
+  gtest.expectEqual(module0.foo, "bar",
+      "module0.foo is " + module0.foo);
+  gtest.expectFalse(module0.bar,
+      "module0.bar is " + module0.bar);
+  gtest.expectEqual(module1.baz, "qux",
+      "module1.baz is " + module1.baz);
+  gtest.expectFalse(module1.qux,
+      "module1.qux is " + module1.qux);
+
+  this.result = "PASS";
+});
+
+define("module1", {
+  "baz": "qux",
+});