lib/html/dartium/html_dartium.dart

Index: lib/html/dartium/html_dartium.dart
diff --git a/lib/html/dartium/html_dartium.dart b/lib/html/dartium/html_dartium.dart
index 73e89b769b0bf86ec40b066cb2d08ca14ead32e3..a8f939092c0e244fdb88a46c0009cc9d6e37731b 100644
--- a/lib/html/dartium/html_dartium.dart
+++ b/lib/html/dartium/html_dartium.dart
@@ -41199,12 +41199,9 @@ class _Deserializer {
 // BSD-style license that can be found in the LICENSE file.
 
 // This API is exploratory.
-spawnDomIsolate(Window targetWindow, String entryPoint) {
-  if (targetWindow is! _DOMWindowImpl && targetWindow is! _DOMWindowCrossFrameImpl) {
-    throw 'Bad window argument: $targetWindow';
-  }
+spawnDomFunction(Function topLevelFunction) {
   final result = new Completer<SendPort>();
-  final port = _Utils.spawnDomIsolateImpl(targetWindow, entryPoint);
+  final port = _Utils.spawnDomFunctionImpl(topLevelFunction);
   window.setTimeout(() { result.complete(port); }, 0);
   return result.future;
 }
@@ -41265,7 +41262,7 @@ class _Utils {
   }
 
   static window() native "Utils_window";
-  static SendPort spawnDomIsolateImpl(Window window, String entryPoint) native "Utils_spawnDomIsolate";
+  static SendPort spawnDomFunctionImpl(Function topLevelFunction) native "Utils_spawnDomFunction";
   static int _getNewIsolateId() native "Utils_getNewIsolateId";
 }