Cross frame access tests

client/dom/templates/dom/frog/impl_HTMLIFrameElement.darttemplate

Index: client/dom/templates/dom/frog/impl_HTMLIFrameElement.darttemplate
diff --git a/client/dom/templates/dom/frog/impl_HTMLIFrameElement.darttemplate b/client/dom/templates/dom/frog/impl_HTMLIFrameElement.darttemplate
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+// 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.
+
+class $CLASSNAME$EXTENDS$IMPLEMENTS$NATIVESPEC {
+$!MEMBERS
+
+  Window get _contentWindow() native "return this.contentWindow;";
+
+  // Override contentWindow to return secure wrapper.
+  Window get contentWindow() {
+    return _DOMWindowCrossFrameImpl._createSafe(_contentWindow);
+  }
+}
+
+// TODO(vsm): Unify with Dartium version.
+class _DOMWindowCrossFrameImpl implements DOMType, DOMWindow {
+  // Private window.
+  _DOMWindowJs _window;
+
+  // DOMType
+  var dartObjectLocalStorage;
+  String get typeName() => "DOMWindow";
+
+  // Fields.
+  // TODO(vsm): Wrap these two.
+  History get history() => _window.history;
+  Location get location() => _window.location;
+
+  bool get closed() => _window.closed;
+  int get length() => _window.length;
+  DOMWindow get opener() => _createDOMWindowCrossFrame(_window.opener);
+  DOMWindow get parent() => _createDOMWindowCrossFrame(_window.parent);
+  DOMWindow get top() => _createDOMWindowCrossFrame(_window.top);
+
+  // Methods.
+  void focus() {
+    _window.focus();
+  }
+
+  void blur() {
+    _window.blur();
+  }
+
+  void close() {
+    _window.close();
+  }
+
+  void postMessage(Dynamic message,
+                   String targetOrigin,
+                   [List messagePorts = null]) {
+    if (messagePorts == null) {
+      _window.postMessage(message, targetOrigin);
+    } else {
+      _window.postMessage(message, targetOrigin, messagePorts);
+    }
+  }
+
+  // Implementation support.
+  _DOMWindowCrossFrameImpl(this._window);
+
+  static DOMWindow _createSafe(w) {
+    // TODO(vsm): Check if it's the top-level window.  Return unwrapped.
+
+    // TODO(vsm): Cache or implement equality.
+    return new _DOMWindowCrossFrameImpl(w);
+  }
+}