Added Dartium support for JS to Dart PortSync calls

lib/dom/templates/html/dartium/html_dartium.darttemplate

Index: lib/dom/templates/html/dartium/html_dartium.darttemplate
diff --git a/lib/dom/templates/html/dartium/html_dartium.darttemplate b/lib/dom/templates/html/dartium/html_dartium.darttemplate
index 9c890e64ce98805f2a669f89380081b7271b63b7..2ea2c6915ef08281259da76a98c03411ec2b02b0 100644
--- a/lib/dom/templates/html/dartium/html_dartium.darttemplate
+++ b/lib/dom/templates/html/dartium/html_dartium.darttemplate
@@ -22,6 +22,7 @@ $!GENERATED_DART_FILES
 #source('$AUXILIARY_DIR/../../html/src/shared_FactoryProviders.dart');
 #source('$AUXILIARY_DIR/../../html/src/dartium_FactoryProviders.dart');
 #source('$AUXILIARY_DIR/../../html/src/IDBOpenDBRequest.dart');
+#source('$AUXILIARY_DIR/../../html/src/Isolates.dart');
 #source('$AUXILIARY_DIR/../../html/src/Measurement.dart');
 #source('$AUXILIARY_DIR/../../html/src/Device.dart');
 #source('$AUXILIARY_DIR/../../html/src/_Testing.dart');
@@ -65,54 +66,27 @@ class _Null {
 
 final _null = const _Null();
 
-// TODO(vsm): Move this to a separate Isolates.dart file.
-_serialize(var message) {
-  // TODO(kasperl): Specialize the serializer.
-  return new _Serializer().traverse(message);
+int _getNewIsolateId() {
+  // TODO(vsm): We need a Dartium native for this.
+  return 1;
 }
 
-_deserialize(var message) {
-  return new _JsDeserializer().deserialize(message);
-}
-
-class _JsDeserializer extends _Deserializer {
-
-  deserializeSendPort(List x) {
-    num id = x[1];
-    return new _JsSendPortSync(id);
-  }
-
-}
-
-class _JsSendPortSync implements SendPortSync {
+bool _callPortInitialized = false;
+var _callPortLastResult = null;
 
-  static bool initialized = false;
-  static var lastResult = null;
-
-  num _id;
-  _JsSendPortSync(this._id) {
-    if (initialized) return;
+_callPortSync(num id, var message) {
+  if (!_callPortInitialized) {
     window.on['js-result'].add((event) {
-      lastResult = JSON.parse(event.data);
+      _callPortLastResult = JSON.parse(event.data);
     }, false);
-    initialized = true;
-  }
-
-  callSync(var message) {
-    var serialized = _serialize(message);
-    var result = _callUsingEvent(_id, serialized);
-    return _deserialize(result);
+    _callPortInitialized = true;
   }
-
-  static _callUsingEvent(num id, var message) {
-    var data = JSON.stringify({ 'id': id, 'message': message });
-    var event = document.$dom_createEvent('TextEvent');
-    event.initTextEvent('js-sync-message', false, false, window, data);
-    assert(lastResult == null);
-    window.$dom_dispatchEvent(event);
-    var result = lastResult;
-    lastResult = null;
-    return result;
-  }
-
+  var data = JSON.stringify({ 'id': id, 'message': message });
+  var event = document.$dom_createEvent('TextEvent');
+  event.initTextEvent('js-sync-message', false, false, window, data);
+  assert(_callPortLastResult == null);
+  window.$dom_dispatchEvent(event);
+  var result = _callPortLastResult;
+  _callPortLastResult = null;
+  return result;
 }