Fix for issue 21398 (only send "literal like" objects across isolates spawned using spawnURI

runtime/bin/dartutils.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef BIN_DARTUTILS_H_
 #define BIN_DARTUTILS_H_
 
 #include "include/dart_api.h"
 #include "include/dart_native_api.h"
 
@@ skipping 475 matching lines @@
 
  private:
   DISALLOW_COPY_AND_ASSIGN(CObjectArray);
 };
 
 
 class CObjectSendPort : public CObject {
  public:
   DECLARE_COBJECT_CONSTRUCTORS(SendPort)
 
-  Dart_Port Value() const { return cobject_->value.as_send_port; }
+  Dart_Port Value() const { return cobject_->value.as_send_port.id; }
+  Dart_Port OriginId() const { return cobject_->value.as_send_port.origin_id; }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(CObjectSendPort);
 };
 
 
 class CObjectTypedData : public CObject {
  public:
   explicit CObjectTypedData(Dart_CObject *cobject) : CObject(cobject) {
     ASSERT(type() == Dart_CObject_kTypedData);
@@ skipping 57 matching lines @@
 
   ~ScopedBlockingCall() {
     Dart_IsolateUnblocked();
   }
 };
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // BIN_DARTUTILS_H_