Move V8-based serialization into dedicated classes and add support for ArrayBuffer transfer.

third_party/WebKit/Source/bindings/core/v8/SerializedScriptValue.h

 /*
  * Copyright (C) 2009, 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 95 matching lines @@
     // Returns true if the value contains a transferable ArrayBuffer.
     bool containsTransferableArrayBuffer() const;
 
     String& data() { return m_data; }
     BlobDataHandleMap& blobDataHandles() { return m_blobDataHandles; }
     ArrayBufferContentsArray* getArrayBufferContentsArray() { return m_arrayBufferContentsArray.get(); }
     ImageBitmapContentsArray* getImageBitmapContentsArray() { return m_imageBitmapContentsArray.get(); }
 
 private:
     friend class ScriptValueSerializer;
+    friend class V8ScriptValueSerializer;
 
     enum StringDataMode {
         StringValue,
         WireData
     };
 
     SerializedScriptValue();
     explicit SerializedScriptValue(const String& wireData);
 
     void setData(const String& data) { m_data = data; }
     void transferArrayBuffers(v8::Isolate*, const ArrayBufferArray&, ExceptionState&);
     void transferImageBitmaps(v8::Isolate*, const ImageBitmapArray&, ExceptionState&);
     void transferOffscreenCanvas(v8::Isolate*, const OffscreenCanvasArray&, ExceptionState&);
 
     String m_data;
     std::unique_ptr<ArrayBufferContentsArray> m_arrayBufferContentsArray;
     std::unique_ptr<ImageBitmapContentsArray> m_imageBitmapContentsArray;
     BlobDataHandleMap m_blobDataHandles;
     intptr_t m_externallyAllocatedMemory;
 };
 
 } // namespace blink
 
 #endif // SerializedScriptValue_h