Revert 20127

tools/dom/templates/html/dart2js/impl_Notification.darttemplate

Index: tools/dom/templates/html/dart2js/impl_Notification.darttemplate
diff --git a/tools/dom/templates/html/impl/impl_EventSource.darttemplate b/tools/dom/templates/html/dart2js/impl_Notification.darttemplate
similarity index 53%
rename from tools/dom/templates/html/impl/impl_EventSource.darttemplate
rename to tools/dom/templates/html/dart2js/impl_Notification.darttemplate
index c75e292511f7dc2dbe308f4a0c09e7ffc4bbe295..ec9c3d3c542187cb2c4b1558b8710df34e6875d7 100644
--- a/tools/dom/templates/html/impl/impl_EventSource.darttemplate
+++ b/tools/dom/templates/html/dart2js/impl_Notification.darttemplate
@@ -5,11 +5,13 @@
 part of $LIBRARYNAME;
 
 $(ANNOTATIONS)class $CLASSNAME$EXTENDS$IMPLEMENTS$NATIVESPEC {
-  factory $CLASSNAME(String title, {withCredentials: false}) {
-    var parsedOptions = {
-      'withCredentials': withCredentials,
-    };
-    return $CLASSNAME._factory$CLASSNAME(title, parsedOptions);
+  factory $CLASSNAME(String title, [Map options]) {
+    if (?options) {
+      return JS('Notification', 'new Notification(#,#)', title,
+          convertDartToNative_SerializedScriptValue(options));
+    } else {
+      return JS('Notification', 'new Notification(#)', title);
+    }
   }
 $!MEMBERS
 }