Migrate all LayoutTests/dart/dom to main repo.

client/tests/client/dom/AsyncWindowTest.dart

Index: client/tests/client/dom/AsyncWindowTest.dart
diff --git a/client/tests/client/dom/AsyncWindowTest.dart b/client/tests/client/dom/AsyncWindowTest.dart
new file mode 100644
index 0000000000000000000000000000000000000000..c9acaf26f48658cb749afff7ee467974e56a775e
--- /dev/null
+++ b/client/tests/client/dom/AsyncWindowTest.dart
@@ -0,0 +1,27 @@
+#library('AsyncWindowTest');
+#import('../../../testing/unittest/unittest.dart');
+#import('dart:dom');
+
+main() {
+  forLayoutTests();
+  asyncTest('Window.setTimeout', 1, () {
+    window.setTimeout(callbackDone, 10);
+  });
+  asyncTest('Window.setInterval', 1, () {
+    int counter = 0;
+    int id = null;
+    id = window.setInterval(() {
+      if (counter == 3) {
+        counter = 1024;
+        window.clearInterval(id);
+        // Wait some more time to be sure callback won't be invoked any more.
+        window.setTimeout(callbackDone, 50);
+        return;
+      }
+      // As callback should have been cleared on 4th invocation, counter
+      // should never be greater than 3.
+      assert(counter < 3);
+      counter++;
+    }, 10);
+  });
+}