Disable test that depends on https://code.google.com/ being available.

dart/tests/html/html.status

Index: dart/tests/html/html.status
diff --git a/dart/tests/html/html.status b/dart/tests/html/html.status
index 71cb5cb906bb6229b7dde34d6bb07ca5be9e93a8..f7f02f643f47fa57ced5a0a5e9d823599668fe96 100644
--- a/dart/tests/html/html.status
+++ b/dart/tests/html/html.status
@@ -2,6 +2,8 @@
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
+xhr_cross_origin_test: Skip # http://dartbug.com/5645
+
 window_open_test: Fail, Pass # http://dartbug.com/5151
 
 event_test: Skip  # Issue 1996
@@ -12,9 +14,6 @@ xmlelement_test: Skip  # XML in dart:html is incomplete
 [ $runtime == chrome ]
 contentelement_test: Fail   # Issue 5445: not currently supported on chrome stable.
 
-[ $runtime == drt ]
-xhr_cross_origin_test: Skip  # Issue 4502: Passes with --allow-external-pages.
-
 [ $compiler == none && ($runtime == drt || $runtime == dartium) ]
 cssstyledeclaration_test: Fail # Issue 5617: Need to make corresponding dartium change.
 
@@ -113,7 +112,6 @@ window_open_test: Skip      # BUG(4016)
 xsltprocessor_test: Skip    # BUG(4016)
 isolates_test: Skip         # BUG(4016)
 xhr_test: Skip              # BUG(4016)
-xhr_cross_origin_test: Skip # TODO(vsm): Triage XHR on IE.
 
 [ $runtime == safari ]
 performance_api_test: Fail # window.performance.timing not in Safari 6.