Mark addEventListeners as Unsupported when called for cross-frame window actions.

tools/dom/src/native_DOMImplementation.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // 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.
 
 part of html;
 
 class _ConsoleVariables {
   Map<String, Object> _data = new Map<String, Object>();
 
   /**
@@ skipping 455 matching lines @@
   WindowBase get opener native "Window_opener_Getter";
   WindowBase get parent native "Window_parent_Getter";
   WindowBase get top native "Window_top_Getter";
 
   // Methods.
   void close() native "Window_close_Callback";
   void postMessage(/*SerializedScriptValue*/ message, String targetOrigin, [List messagePorts]) native "Window_postMessage_Callback";
 
   // Implementation support.
   String get typeName => "Window";
+
+  // TODO(efortuna): Remove this method. dartbug.com/16814
+  Events get on => throw new UnsupportedError(
+    'You can only attach EventListeners to your own window.');
+  // TODO(efortuna): Remove this method. dartbug.com/16814
+  void addEventListener(String type, EventListener listener, [bool useCapture])
+      => throw new UnsupportedError(
+    'You can only attach EventListeners to your own window.');
+  // TODO(efortuna): Remove this method. dartbug.com/16814
+  bool dispatchEvent(Event event) => throw new UnsupportedError(
+    'You can only attach EventListeners to your own window.');
+  // TODO(efortuna): Remove this method. dartbug.com/16814
+  void removeEventListener(String type, EventListener listener,
+      [bool useCapture]) => throw new UnsupportedError(
+    'You can only attach EventListeners to your own window.');
 }
 
 class _HistoryCrossFrame extends NativeFieldWrapperClass2 implements HistoryBase {
   _HistoryCrossFrame.internal();
 
   // Methods.
   void back() native "History_back_Callback";
   void forward() native "History_forward_Callback";
   void go(int distance) native "History_go_Callback";
 
@@ skipping 129 matching lines @@
   _scheduleImmediateHelper._schedule(callback);
 };
 
 get _pureIsolateScheduleImmediateClosure => ((void callback()) =>
   throw new UnimplementedError("scheduleMicrotask in background isolates "
                                "are not supported in the browser"));
 
 void _initializeCustomElement(Element e) {
   _Utils.initializeCustomElement(e);
 }