Move dart:dom to dart:dom_deprecated

lib/unittest/unittest.dart

Index: lib/unittest/unittest.dart
diff --git a/lib/unittest/unittest.dart b/lib/unittest/unittest.dart
index a59a12c218eed25d0bc10fcc4e99693df54f9cb6..cc0e150cd9fdb730b5ccd0eb48b64f033433ea5d 100644
--- a/lib/unittest/unittest.dart
+++ b/lib/unittest/unittest.dart
@@ -67,7 +67,7 @@
  * Asynchronous tests: if callbacks expect between 0 and 2 positional arguments.
  *
  *     #import('path-to-dart/lib/unittest/unitest.dart');
- *     #import('dart:dom');
+ *     #import('dart:dom_deprecated');
  *     main() {
  *       test('calllback is executed once', () {
  *         // wrap the callback of an asynchronous call with [expectAsync0] if
@@ -99,7 +99,7 @@
  * but will be coming here soon).
  *
  *     #import('path-to-dart/lib/unittest/unitest.dart');
- *     #import('dart:dom');
+ *     #import('dart:dom_deprecated');
  *     main() {
  *       test('calllback is executed', () {
  *         // indicate ahead of time that an async callback is expected.