Dart: Futures -> Callbacks.

mojo/dart/packages/mojo/lib/mojo/url_response.mojom.dart

 // WARNING: DO NOT EDIT. This file was generated by a program.
 // See $MOJO_SDK/tools/bindings/mojom_bindings_generator.py.
 
 library url_response_mojom;
 import 'package:mojo/bindings.dart' as bindings;
 import 'package:mojo/core.dart' as core;
 
 import 'package:mojo/mojo/http_header.mojom.dart' as http_header_mojom;
 import 'package:mojo/mojo/network_error.mojom.dart' as network_error_mojom;
 
@@ skipping 10 matching lines @@
   String statusLine = null;
   List<http_header_mojom.HttpHeader> headers = null;
   String mimeType = null;
   String charset = null;
   String redirectMethod = null;
   String redirectUrl = null;
   String redirectReferrer = null;
 
   UrlResponse() : super(kVersions.last.size);
 
+  UrlResponse.init(
+    network_error_mojom.NetworkError this.error, 
+    core.MojoDataPipeConsumer this.body, 
+    int this.statusCode, 
+    String this.url, 
+    String this.statusLine, 
+    List<http_header_mojom.HttpHeader> this.headers, 
+    String this.mimeType, 
+    String this.charset, 
+    String this.redirectMethod, 
+    String this.redirectUrl, 
+    String this.redirectReferrer
+  ) : super(kVersions.last.size);
+
   static UrlResponse deserialize(bindings.Message message) {
     var decoder = new bindings.Decoder(message);
     var result = decode(decoder);
     if (decoder.excessHandles != null) {
       decoder.excessHandles.forEach((h) => h.close());
     }
     return result;
   }
 
   static UrlResponse decode(bindings.Decoder decoder0) {
@@ skipping 183 matching lines @@
   }
 
   Map toJson() {
     throw new bindings.MojoCodecError(
         'Object containing handles cannot be encoded to JSON.');
   }
 }