text: // Copyright 2016 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.
  
  #ifndef THIRD_PARTY_BLINK_RENDERER_BINDINGS_CORE_V8_SERIALIZATION_TRANSFERABLES_H_
  #define THIRD_PARTY_BLINK_RENDERER_BINDINGS_CORE_V8_SERIALIZATION_TRANSFERABLES_H_
  
  #include "third_party/blink/renderer/core/core_export.h"
  #include "third_party/blink/renderer/platform/heap/handle.h"
  #include "third_party/blink/renderer/platform/wtf/noncopyable.h"
  
  namespace blink {
  
  class DOMArrayBufferBase;
  class ImageBitmap;
  class OffscreenCanvas;
  class MessagePort;
  
  using ArrayBufferArray = HeapVector<Member<DOMArrayBufferBase>>;
  using ImageBitmapArray = HeapVector<Member<ImageBitmap>>;
  using OffscreenCanvasArray = HeapVector<Member<OffscreenCanvas>>;
  using MessagePortArray = HeapVector<Member<MessagePort>>;
  
  class CORE_EXPORT Transferables final {
    STACK_ALLOCATED();
    WTF_MAKE_NONCOPYABLE(Transferables);
  
   public:
    Transferables() = default;
  
    ArrayBufferArray array_buffers;
    ImageBitmapArray image_bitmaps;
    OffscreenCanvasArray offscreen_canvases;
    MessagePortArray message_ports;
  };
  
  // Along with extending |Transferables| to hold a new kind of transferable
  // objects, serialization handling code changes are required:
  //   - extend ScriptValueSerializer::copyTransferables()
  //   - alter SerializedScriptValue(Factory) to do the actual transfer.
  
  }  // namespace blink
  
  #endif  // THIRD_PARTY_BLINK_RENDERER_BINDINGS_CORE_V8_SERIALIZATION_TRANSFERABLES_H_
  