Things to unfork.

Source/WebCore/bindings/dart/resources/dom_implementation.dart

-class Utils {
-  static List convertToList(List list) {
-    // FIXME: [possible optimization]: do not copy the array if Dart_IsArray is fine w/ it.
-    final length = list.length;
-    List result = new List(length);
-    result.copyFrom(list, 0, 0, length);
-    return result;
-  }
-
-  static makeNotImplementedException() {
-    return const NotImplementedException();
-  }
-
-  static window() native "TopLevel_Window";
-
-  static SendPort spawnDomIsolate(Window window, String entryPoint) native "Utils_spawnDomIsolate";
-}
-
-/*
- * [NPObjectBase] is native wrapper class injected from embedder's code.
- */
-class NPObject extends DOMWrapperBase {
-  static NPObject retrieve(String key) native "NPObject_retrieve";
-  property(String propertyName) native "NPObject_property";
-  invoke(String methodName, [ObjectArray args = null]) native "NPObject_invoke";
-
-  static _createNPObject() => new NPObject._createNPObject();
-  NPObject._createNPObject();
-}
-
-class DOMWindowCrossFrameImplementation extends DOMType implements DOMWindow {
-  // Fields.
-  History get history() native "DOMWindow_history_cross_frame_Getter";
-  Location get location() native "DOMWindow_location_cross_frame_Getter";
-  bool get closed() native "DOMWindow_closed_Getter";
-  int get length() native "DOMWindow_length_Getter";
-  DOMWindow get opener() native "DOMWindow_opener_Getter";
-  DOMWindow get parent() native "DOMWindow_parent_Getter";
-  DOMWindow get top() native "DOMWindow_top_Getter";
-
-  // Methods.
-  void focus() native "DOMWindow_focus_Callback";
-  void blur() native "DOMWindow_blur_Callback";
-  void close() native "DOMWindow_close_Callback";
-  void postMessage([_arg0, _arg1, _arg2]) native "DOMWindow_postMessage_Callback";
-
-  // Implementation support.
-  static DOMWindowCrossFrameImplementation _createDOMWindowCrossFrameImplementation() => new DOMWindowCrossFrameImplementation._createDOMWindowCrossFrameImplementation();
-  DOMWindowCrossFrameImplementation._createDOMWindowCrossFrameImplementation();
-
-  String get typeName() => "DOMWindow";
-}
-
-class HistoryCrossFrameImplementation extends DOMType implements History {
-  // Methods.
-  void back() native "History_back_Callback";
-  void forward() native "History_forward_Callback";
-  void go(int distance) native "History_go_Callback";
-
-  // Implementation support.
-  static HistoryCrossFrameImplementation _createHistoryCrossFrameImplementation() => new HistoryCrossFrameImplementation._createHistoryCrossFrameImplementation();
-  HistoryCrossFrameImplementation._createHistoryCrossFrameImplementation();
-
-  String get typeName() => "History";
-}
-
-class LocationCrossFrameImplementation extends DOMType implements Location {
-  // Fields.
-  void set href(String) native "Location_href_Setter";
-
-  // Implementation support.
-  static LocationCrossFrameImplementation _createLocationCrossFrameImplementation() => new LocationCrossFrameImplementation._createLocationCrossFrameImplementation();
-  LocationCrossFrameImplementation._createLocationCrossFrameImplementation();
-
-  String get typeName() => "Location";
-}