Check in generated Dart bindings and add presubmit script

mojo/dart/packages/mojo_services/lib/mojo/url_loader.mojom.dart

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+library url_loader_mojom;
+
+import 'dart:async';
+
+import 'package:mojo/bindings.dart' as bindings;
+import 'package:mojo/core.dart' as core;
+import 'package:mojo/mojo/network_error.mojom.dart' as network_error_mojom;
+import 'package:mojo/mojo/url_request.mojom.dart' as url_request_mojom;
+import 'package:mojo/mojo/url_response.mojom.dart' as url_response_mojom;
+
+
+
+class UrlLoaderStatus extends bindings.Struct {
+  static const List<bindings.StructDataHeader> kVersions = const [
+    const bindings.StructDataHeader(24, 0)
+  ];
+  network_error_mojom.NetworkError error = null;
+  bool isLoading = false;
+
+  UrlLoaderStatus() : super(kVersions.last.size);
+
+  static UrlLoaderStatus 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 UrlLoaderStatus decode(bindings.Decoder decoder0) {
+    if (decoder0 == null) {
+      return null;
+    }
+    UrlLoaderStatus result = new UrlLoaderStatus();
+
+    var mainDataHeader = decoder0.decodeStructDataHeader();
+    if (mainDataHeader.version <= kVersions.last.version) {
+      // Scan in reverse order to optimize for more recent versions.
+      for (int i = kVersions.length - 1; i >= 0; --i) {
+        if (mainDataHeader.version >= kVersions[i].version) {
+          if (mainDataHeader.size == kVersions[i].size) {
+            // Found a match.
+            break;
+          }
+          throw new bindings.MojoCodecError(
+              'Header size doesn\'t correspond to known version size.');
+        }
+      }
+    } else if (mainDataHeader.size < kVersions.last.size) {
+      throw new bindings.MojoCodecError(
+        'Message newer than the last known version cannot be shorter than '
+        'required by the last known version.');
+    }
+    if (mainDataHeader.version >= 0) {
+      
+      var decoder1 = decoder0.decodePointer(8, true);
+      result.error = network_error_mojom.NetworkError.decode(decoder1);
+    }
+    if (mainDataHeader.version >= 0) {
+      
+      result.isLoading = decoder0.decodeBool(16, 0);
+    }
+    return result;
+  }
+
+  void encode(bindings.Encoder encoder) {
+    var encoder0 = encoder.getStructEncoderAtOffset(kVersions.last);
+    
+    encoder0.encodeStruct(error, 8, true);
+    
+    encoder0.encodeBool(isLoading, 16, 0);
+  }
+
+  String toString() {
+    return "UrlLoaderStatus("
+           "error: $error" ", "
+           "isLoading: $isLoading" ")";
+  }
+
+  Map toJson() {
+    Map map = new Map();
+    map["error"] = error;
+    map["isLoading"] = isLoading;
+    return map;
+  }
+}
+
+
+class UrlLoaderStartParams extends bindings.Struct {
+  static const List<bindings.StructDataHeader> kVersions = const [
+    const bindings.StructDataHeader(16, 0)
+  ];
+  url_request_mojom.UrlRequest request = null;
+
+  UrlLoaderStartParams() : super(kVersions.last.size);
+
+  static UrlLoaderStartParams 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 UrlLoaderStartParams decode(bindings.Decoder decoder0) {
+    if (decoder0 == null) {
+      return null;
+    }
+    UrlLoaderStartParams result = new UrlLoaderStartParams();
+
+    var mainDataHeader = decoder0.decodeStructDataHeader();
+    if (mainDataHeader.version <= kVersions.last.version) {
+      // Scan in reverse order to optimize for more recent versions.
+      for (int i = kVersions.length - 1; i >= 0; --i) {
+        if (mainDataHeader.version >= kVersions[i].version) {
+          if (mainDataHeader.size == kVersions[i].size) {
+            // Found a match.
+            break;
+          }
+          throw new bindings.MojoCodecError(
+              'Header size doesn\'t correspond to known version size.');
+        }
+      }
+    } else if (mainDataHeader.size < kVersions.last.size) {
+      throw new bindings.MojoCodecError(
+        'Message newer than the last known version cannot be shorter than '
+        'required by the last known version.');
+    }
+    if (mainDataHeader.version >= 0) {
+      
+      var decoder1 = decoder0.decodePointer(8, false);
+      result.request = url_request_mojom.UrlRequest.decode(decoder1);
+    }
+    return result;
+  }
+
+  void encode(bindings.Encoder encoder) {
+    var encoder0 = encoder.getStructEncoderAtOffset(kVersions.last);
+    
+    encoder0.encodeStruct(request, 8, false);
+  }
+
+  String toString() {
+    return "UrlLoaderStartParams("
+           "request: $request" ")";
+  }
+
+  Map toJson() {
+    throw new bindings.MojoCodecError(
+        'Object containing handles cannot be encoded to JSON.');
+  }
+}
+
+
+class UrlLoaderStartResponseParams extends bindings.Struct {
+  static const List<bindings.StructDataHeader> kVersions = const [
+    const bindings.StructDataHeader(16, 0)
+  ];
+  url_response_mojom.UrlResponse response = null;
+
+  UrlLoaderStartResponseParams() : super(kVersions.last.size);
+
+  static UrlLoaderStartResponseParams 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 UrlLoaderStartResponseParams decode(bindings.Decoder decoder0) {
+    if (decoder0 == null) {
+      return null;
+    }
+    UrlLoaderStartResponseParams result = new UrlLoaderStartResponseParams();
+
+    var mainDataHeader = decoder0.decodeStructDataHeader();
+    if (mainDataHeader.version <= kVersions.last.version) {
+      // Scan in reverse order to optimize for more recent versions.
+      for (int i = kVersions.length - 1; i >= 0; --i) {
+        if (mainDataHeader.version >= kVersions[i].version) {
+          if (mainDataHeader.size == kVersions[i].size) {
+            // Found a match.
+            break;
+          }
+          throw new bindings.MojoCodecError(
+              'Header size doesn\'t correspond to known version size.');
+        }
+      }
+    } else if (mainDataHeader.size < kVersions.last.size) {
+      throw new bindings.MojoCodecError(
+        'Message newer than the last known version cannot be shorter than '
+        'required by the last known version.');
+    }
+    if (mainDataHeader.version >= 0) {
+      
+      var decoder1 = decoder0.decodePointer(8, false);
+      result.response = url_response_mojom.UrlResponse.decode(decoder1);
+    }
+    return result;
+  }
+
+  void encode(bindings.Encoder encoder) {
+    var encoder0 = encoder.getStructEncoderAtOffset(kVersions.last);
+    
+    encoder0.encodeStruct(response, 8, false);
+  }
+
+  String toString() {
+    return "UrlLoaderStartResponseParams("
+           "response: $response" ")";
+  }
+
+  Map toJson() {
+    throw new bindings.MojoCodecError(
+        'Object containing handles cannot be encoded to JSON.');
+  }
+}
+
+
+class UrlLoaderFollowRedirectParams extends bindings.Struct {
+  static const List<bindings.StructDataHeader> kVersions = const [
+    const bindings.StructDataHeader(8, 0)
+  ];
+
+  UrlLoaderFollowRedirectParams() : super(kVersions.last.size);
+
+  static UrlLoaderFollowRedirectParams 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 UrlLoaderFollowRedirectParams decode(bindings.Decoder decoder0) {
+    if (decoder0 == null) {
+      return null;
+    }
+    UrlLoaderFollowRedirectParams result = new UrlLoaderFollowRedirectParams();
+
+    var mainDataHeader = decoder0.decodeStructDataHeader();
+    if (mainDataHeader.version <= kVersions.last.version) {
+      // Scan in reverse order to optimize for more recent versions.
+      for (int i = kVersions.length - 1; i >= 0; --i) {
+        if (mainDataHeader.version >= kVersions[i].version) {
+          if (mainDataHeader.size == kVersions[i].size) {
+            // Found a match.
+            break;
+          }
+          throw new bindings.MojoCodecError(
+              'Header size doesn\'t correspond to known version size.');
+        }
+      }
+    } else if (mainDataHeader.size < kVersions.last.size) {
+      throw new bindings.MojoCodecError(
+        'Message newer than the last known version cannot be shorter than '
+        'required by the last known version.');
+    }
+    return result;
+  }
+
+  void encode(bindings.Encoder encoder) {
+    encoder.getStructEncoderAtOffset(kVersions.last);
+  }
+
+  String toString() {
+    return "UrlLoaderFollowRedirectParams("")";
+  }
+
+  Map toJson() {
+    Map map = new Map();
+    return map;
+  }
+}
+
+
+class UrlLoaderFollowRedirectResponseParams extends bindings.Struct {
+  static const List<bindings.StructDataHeader> kVersions = const [
+    const bindings.StructDataHeader(16, 0)
+  ];
+  url_response_mojom.UrlResponse response = null;
+
+  UrlLoaderFollowRedirectResponseParams() : super(kVersions.last.size);
+
+  static UrlLoaderFollowRedirectResponseParams 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 UrlLoaderFollowRedirectResponseParams decode(bindings.Decoder decoder0) {
+    if (decoder0 == null) {
+      return null;
+    }
+    UrlLoaderFollowRedirectResponseParams result = new UrlLoaderFollowRedirectResponseParams();
+
+    var mainDataHeader = decoder0.decodeStructDataHeader();
+    if (mainDataHeader.version <= kVersions.last.version) {
+      // Scan in reverse order to optimize for more recent versions.
+      for (int i = kVersions.length - 1; i >= 0; --i) {
+        if (mainDataHeader.version >= kVersions[i].version) {
+          if (mainDataHeader.size == kVersions[i].size) {
+            // Found a match.
+            break;
+          }
+          throw new bindings.MojoCodecError(
+              'Header size doesn\'t correspond to known version size.');
+        }
+      }
+    } else if (mainDataHeader.size < kVersions.last.size) {
+      throw new bindings.MojoCodecError(
+        'Message newer than the last known version cannot be shorter than '
+        'required by the last known version.');
+    }
+    if (mainDataHeader.version >= 0) {
+      
+      var decoder1 = decoder0.decodePointer(8, false);
+      result.response = url_response_mojom.UrlResponse.decode(decoder1);
+    }
+    return result;
+  }
+
+  void encode(bindings.Encoder encoder) {
+    var encoder0 = encoder.getStructEncoderAtOffset(kVersions.last);
+    
+    encoder0.encodeStruct(response, 8, false);
+  }
+
+  String toString() {
+    return "UrlLoaderFollowRedirectResponseParams("
+           "response: $response" ")";
+  }
+
+  Map toJson() {
+    throw new bindings.MojoCodecError(
+        'Object containing handles cannot be encoded to JSON.');
+  }
+}
+
+
+class UrlLoaderQueryStatusParams extends bindings.Struct {
+  static const List<bindings.StructDataHeader> kVersions = const [
+    const bindings.StructDataHeader(8, 0)
+  ];
+
+  UrlLoaderQueryStatusParams() : super(kVersions.last.size);
+
+  static UrlLoaderQueryStatusParams 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 UrlLoaderQueryStatusParams decode(bindings.Decoder decoder0) {
+    if (decoder0 == null) {
+      return null;
+    }
+    UrlLoaderQueryStatusParams result = new UrlLoaderQueryStatusParams();
+
+    var mainDataHeader = decoder0.decodeStructDataHeader();
+    if (mainDataHeader.version <= kVersions.last.version) {
+      // Scan in reverse order to optimize for more recent versions.
+      for (int i = kVersions.length - 1; i >= 0; --i) {
+        if (mainDataHeader.version >= kVersions[i].version) {
+          if (mainDataHeader.size == kVersions[i].size) {
+            // Found a match.
+            break;
+          }
+          throw new bindings.MojoCodecError(
+              'Header size doesn\'t correspond to known version size.');
+        }
+      }
+    } else if (mainDataHeader.size < kVersions.last.size) {
+      throw new bindings.MojoCodecError(
+        'Message newer than the last known version cannot be shorter than '
+        'required by the last known version.');
+    }
+    return result;
+  }
+
+  void encode(bindings.Encoder encoder) {
+    encoder.getStructEncoderAtOffset(kVersions.last);
+  }
+
+  String toString() {
+    return "UrlLoaderQueryStatusParams("")";
+  }
+
+  Map toJson() {
+    Map map = new Map();
+    return map;
+  }
+}
+
+
+class UrlLoaderQueryStatusResponseParams extends bindings.Struct {
+  static const List<bindings.StructDataHeader> kVersions = const [
+    const bindings.StructDataHeader(16, 0)
+  ];
+  UrlLoaderStatus status = null;
+
+  UrlLoaderQueryStatusResponseParams() : super(kVersions.last.size);
+
+  static UrlLoaderQueryStatusResponseParams 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 UrlLoaderQueryStatusResponseParams decode(bindings.Decoder decoder0) {
+    if (decoder0 == null) {
+      return null;
+    }
+    UrlLoaderQueryStatusResponseParams result = new UrlLoaderQueryStatusResponseParams();
+
+    var mainDataHeader = decoder0.decodeStructDataHeader();
+    if (mainDataHeader.version <= kVersions.last.version) {
+      // Scan in reverse order to optimize for more recent versions.
+      for (int i = kVersions.length - 1; i >= 0; --i) {
+        if (mainDataHeader.version >= kVersions[i].version) {
+          if (mainDataHeader.size == kVersions[i].size) {
+            // Found a match.
+            break;
+          }
+          throw new bindings.MojoCodecError(
+              'Header size doesn\'t correspond to known version size.');
+        }
+      }
+    } else if (mainDataHeader.size < kVersions.last.size) {
+      throw new bindings.MojoCodecError(
+        'Message newer than the last known version cannot be shorter than '
+        'required by the last known version.');
+    }
+    if (mainDataHeader.version >= 0) {
+      
+      var decoder1 = decoder0.decodePointer(8, false);
+      result.status = UrlLoaderStatus.decode(decoder1);
+    }
+    return result;
+  }
+
+  void encode(bindings.Encoder encoder) {
+    var encoder0 = encoder.getStructEncoderAtOffset(kVersions.last);
+    
+    encoder0.encodeStruct(status, 8, false);
+  }
+
+  String toString() {
+    return "UrlLoaderQueryStatusResponseParams("
+           "status: $status" ")";
+  }
+
+  Map toJson() {
+    Map map = new Map();
+    map["status"] = status;
+    return map;
+  }
+}
+
+const int kUrlLoader_start_name = 0;
+const int kUrlLoader_followRedirect_name = 1;
+const int kUrlLoader_queryStatus_name = 2;
+
+const String UrlLoaderName =
+      'mojo::URLLoader';
+
+abstract class UrlLoader {
+  dynamic start(url_request_mojom.UrlRequest request,[Function responseFactory = null]);
+  dynamic followRedirect([Function responseFactory = null]);
+  dynamic queryStatus([Function responseFactory = null]);
+
+}
+
+
+class UrlLoaderProxyImpl extends bindings.Proxy {
+  UrlLoaderProxyImpl.fromEndpoint(
+      core.MojoMessagePipeEndpoint endpoint) : super.fromEndpoint(endpoint);
+
+  UrlLoaderProxyImpl.fromHandle(core.MojoHandle handle) :
+      super.fromHandle(handle);
+
+  UrlLoaderProxyImpl.unbound() : super.unbound();
+
+  static UrlLoaderProxyImpl newFromEndpoint(
+      core.MojoMessagePipeEndpoint endpoint) {
+    assert(endpoint.setDescription("For UrlLoaderProxyImpl"));
+    return new UrlLoaderProxyImpl.fromEndpoint(endpoint);
+  }
+
+  String get name => UrlLoaderName;
+
+  void handleResponse(bindings.ServiceMessage message) {
+    switch (message.header.type) {
+      case kUrlLoader_start_name:
+        var r = UrlLoaderStartResponseParams.deserialize(
+            message.payload);
+        if (!message.header.hasRequestId) {
+          proxyError("Expected a message with a valid request Id.");
+          return;
+        }
+        Completer c = completerMap[message.header.requestId];
+        if (c == null) {
+          proxyError(
+              "Message had unknown request Id: ${message.header.requestId}");
+          return;
+        }
+        completerMap.remove(message.header.requestId);
+        if (c.isCompleted) {
+          proxyError("Response completer already completed");
+          return;
+        }
+        c.complete(r);
+        break;
+      case kUrlLoader_followRedirect_name:
+        var r = UrlLoaderFollowRedirectResponseParams.deserialize(
+            message.payload);
+        if (!message.header.hasRequestId) {
+          proxyError("Expected a message with a valid request Id.");
+          return;
+        }
+        Completer c = completerMap[message.header.requestId];
+        if (c == null) {
+          proxyError(
+              "Message had unknown request Id: ${message.header.requestId}");
+          return;
+        }
+        completerMap.remove(message.header.requestId);
+        if (c.isCompleted) {
+          proxyError("Response completer already completed");
+          return;
+        }
+        c.complete(r);
+        break;
+      case kUrlLoader_queryStatus_name:
+        var r = UrlLoaderQueryStatusResponseParams.deserialize(
+            message.payload);
+        if (!message.header.hasRequestId) {
+          proxyError("Expected a message with a valid request Id.");
+          return;
+        }
+        Completer c = completerMap[message.header.requestId];
+        if (c == null) {
+          proxyError(
+              "Message had unknown request Id: ${message.header.requestId}");
+          return;
+        }
+        completerMap.remove(message.header.requestId);
+        if (c.isCompleted) {
+          proxyError("Response completer already completed");
+          return;
+        }
+        c.complete(r);
+        break;
+      default:
+        proxyError("Unexpected message type: ${message.header.type}");
+        close(immediate: true);
+        break;
+    }
+  }
+
+  String toString() {
+    var superString = super.toString();
+    return "UrlLoaderProxyImpl($superString)";
+  }
+}
+
+
+class _UrlLoaderProxyCalls implements UrlLoader {
+  UrlLoaderProxyImpl _proxyImpl;
+
+  _UrlLoaderProxyCalls(this._proxyImpl);
+    dynamic start(url_request_mojom.UrlRequest request,[Function responseFactory = null]) {
+      var params = new UrlLoaderStartParams();
+      params.request = request;
+      return _proxyImpl.sendMessageWithRequestId(
+          params,
+          kUrlLoader_start_name,
+          -1,
+          bindings.MessageHeader.kMessageExpectsResponse);
+    }
+    dynamic followRedirect([Function responseFactory = null]) {
+      var params = new UrlLoaderFollowRedirectParams();
+      return _proxyImpl.sendMessageWithRequestId(
+          params,
+          kUrlLoader_followRedirect_name,
+          -1,
+          bindings.MessageHeader.kMessageExpectsResponse);
+    }
+    dynamic queryStatus([Function responseFactory = null]) {
+      var params = new UrlLoaderQueryStatusParams();
+      return _proxyImpl.sendMessageWithRequestId(
+          params,
+          kUrlLoader_queryStatus_name,
+          -1,
+          bindings.MessageHeader.kMessageExpectsResponse);
+    }
+}
+
+
+class UrlLoaderProxy implements bindings.ProxyBase {
+  final bindings.Proxy impl;
+  UrlLoader ptr;
+  final String name = UrlLoaderName;
+
+  UrlLoaderProxy(UrlLoaderProxyImpl proxyImpl) :
+      impl = proxyImpl,
+      ptr = new _UrlLoaderProxyCalls(proxyImpl);
+
+  UrlLoaderProxy.fromEndpoint(
+      core.MojoMessagePipeEndpoint endpoint) :
+      impl = new UrlLoaderProxyImpl.fromEndpoint(endpoint) {
+    ptr = new _UrlLoaderProxyCalls(impl);
+  }
+
+  UrlLoaderProxy.fromHandle(core.MojoHandle handle) :
+      impl = new UrlLoaderProxyImpl.fromHandle(handle) {
+    ptr = new _UrlLoaderProxyCalls(impl);
+  }
+
+  UrlLoaderProxy.unbound() :
+      impl = new UrlLoaderProxyImpl.unbound() {
+    ptr = new _UrlLoaderProxyCalls(impl);
+  }
+
+  factory UrlLoaderProxy.connectToService(
+      bindings.ServiceConnector s, String url) {
+    UrlLoaderProxy p = new UrlLoaderProxy.unbound();
+    s.connectToService(url, p);
+    return p;
+  }
+
+  static UrlLoaderProxy newFromEndpoint(
+      core.MojoMessagePipeEndpoint endpoint) {
+    assert(endpoint.setDescription("For UrlLoaderProxy"));
+    return new UrlLoaderProxy.fromEndpoint(endpoint);
+  }
+
+  Future close({bool immediate: false}) => impl.close(immediate: immediate);
+
+  Future responseOrError(Future f) => impl.responseOrError(f);
+
+  Future get errorFuture => impl.errorFuture;
+
+  int get version => impl.version;
+
+  Future<int> queryVersion() => impl.queryVersion();
+
+  void requireVersion(int requiredVersion) {
+    impl.requireVersion(requiredVersion);
+  }
+
+  String toString() {
+    return "UrlLoaderProxy($impl)";
+  }
+}
+
+
+class UrlLoaderStub extends bindings.Stub {
+  UrlLoader _impl = null;
+
+  UrlLoaderStub.fromEndpoint(
+      core.MojoMessagePipeEndpoint endpoint, [this._impl])
+      : super.fromEndpoint(endpoint);
+
+  UrlLoaderStub.fromHandle(core.MojoHandle handle, [this._impl])
+      : super.fromHandle(handle);
+
+  UrlLoaderStub.unbound() : super.unbound();
+
+  static UrlLoaderStub newFromEndpoint(
+      core.MojoMessagePipeEndpoint endpoint) {
+    assert(endpoint.setDescription("For UrlLoaderStub"));
+    return new UrlLoaderStub.fromEndpoint(endpoint);
+  }
+
+  static const String name = UrlLoaderName;
+
+
+  UrlLoaderStartResponseParams _UrlLoaderStartResponseParamsFactory(url_response_mojom.UrlResponse response) {
+    var result = new UrlLoaderStartResponseParams();
+    result.response = response;
+    return result;
+  }
+  UrlLoaderFollowRedirectResponseParams _UrlLoaderFollowRedirectResponseParamsFactory(url_response_mojom.UrlResponse response) {
+    var result = new UrlLoaderFollowRedirectResponseParams();
+    result.response = response;
+    return result;
+  }
+  UrlLoaderQueryStatusResponseParams _UrlLoaderQueryStatusResponseParamsFactory(UrlLoaderStatus status) {
+    var result = new UrlLoaderQueryStatusResponseParams();
+    result.status = status;
+    return result;
+  }
+
+  dynamic handleMessage(bindings.ServiceMessage message) {
+    if (bindings.ControlMessageHandler.isControlMessage(message)) {
+      return bindings.ControlMessageHandler.handleMessage(this,
+                                                          0,
+                                                          message);
+    }
+    assert(_impl != null);
+    switch (message.header.type) {
+      case kUrlLoader_start_name:
+        var params = UrlLoaderStartParams.deserialize(
+            message.payload);
+        var response = _impl.start(params.request,_UrlLoaderStartResponseParamsFactory);
+        if (response is Future) {
+          return response.then((response) {
+            if (response != null) {
+              return buildResponseWithId(
+                  response,
+                  kUrlLoader_start_name,
+                  message.header.requestId,
+                  bindings.MessageHeader.kMessageIsResponse);
+            }
+          });
+        } else if (response != null) {
+          return buildResponseWithId(
+              response,
+              kUrlLoader_start_name,
+              message.header.requestId,
+              bindings.MessageHeader.kMessageIsResponse);
+        }
+        break;
+      case kUrlLoader_followRedirect_name:
+        var params = UrlLoaderFollowRedirectParams.deserialize(
+            message.payload);
+        var response = _impl.followRedirect(_UrlLoaderFollowRedirectResponseParamsFactory);
+        if (response is Future) {
+          return response.then((response) {
+            if (response != null) {
+              return buildResponseWithId(
+                  response,
+                  kUrlLoader_followRedirect_name,
+                  message.header.requestId,
+                  bindings.MessageHeader.kMessageIsResponse);
+            }
+          });
+        } else if (response != null) {
+          return buildResponseWithId(
+              response,
+              kUrlLoader_followRedirect_name,
+              message.header.requestId,
+              bindings.MessageHeader.kMessageIsResponse);
+        }
+        break;
+      case kUrlLoader_queryStatus_name:
+        var params = UrlLoaderQueryStatusParams.deserialize(
+            message.payload);
+        var response = _impl.queryStatus(_UrlLoaderQueryStatusResponseParamsFactory);
+        if (response is Future) {
+          return response.then((response) {
+            if (response != null) {
+              return buildResponseWithId(
+                  response,
+                  kUrlLoader_queryStatus_name,
+                  message.header.requestId,
+                  bindings.MessageHeader.kMessageIsResponse);
+            }
+          });
+        } else if (response != null) {
+          return buildResponseWithId(
+              response,
+              kUrlLoader_queryStatus_name,
+              message.header.requestId,
+              bindings.MessageHeader.kMessageIsResponse);
+        }
+        break;
+      default:
+        throw new bindings.MojoCodecError("Unexpected message name");
+        break;
+    }
+    return null;
+  }
+
+  UrlLoader get impl => _impl;
+  set impl(UrlLoader d) {
+    assert(_impl == null);
+    _impl = d;
+  }
+
+  String toString() {
+    var superString = super.toString();
+    return "UrlLoaderStub($superString)";
+  }
+
+  int get version => 0;
+}
+
+