[Binding] [Refactoring] Make SerializedScriptValueWriter protected

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

 // 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.
 
 #ifndef SerializedScriptValueFactory_h
 #define SerializedScriptValueFactory_h
 
 #include "bindings/core/v8/ScriptValueSerializer.h"
 #include "bindings/core/v8/SerializedScriptValue.h"
 #include "core/CoreExport.h"
@@ skipping 19 matching lines @@
 
     // Following 4 methods are expected to be called by SerializedScriptValue.
 
     // If a serialization error occurs (e.g., cyclic input value) this
     // function returns an empty representation, schedules a V8 exception to
     // be thrown using v8::ThrowException(), and sets |didThrow|. In this case
     // the caller must not invoke any V8 operations until control returns to
     // V8. When serialization is successful, |didThrow| is false.
     virtual PassRefPtr<SerializedScriptValue> create(v8::Isolate*, v8::Local<v8::Value>, Transferables*, WebBlobInfoArray*, ExceptionState&);
     PassRefPtr<SerializedScriptValue> create(v8::Isolate*, v8::Local<v8::Value>, SerializedScriptValueWriter&, Transferables*, WebBlobInfoArray*, ExceptionState&);
-    PassRefPtr<SerializedScriptValue> create(const String&);
 
     v8::Local<v8::Value> deserialize(SerializedScriptValue*, v8::Isolate*, MessagePortArray*, const WebBlobInfoArray*);
 
     // Following methods are expected to be called in SerializedScriptValueFactory{ForModules}.
     SerializedScriptValueFactory() { }
     virtual ScriptValueSerializer::Status doSerialize(v8::Local<v8::Value>, SerializedScriptValueWriter&, Transferables*, WebBlobInfoArray*, BlobDataHandleMap&, v8::TryCatch&, String& errorMessage, v8::Isolate*);
     virtual v8::Local<v8::Value> deserialize(String& data, BlobDataHandleMap& blobDataHandles, ArrayBufferContentsArray*, ImageBitmapContentsArray*, v8::Isolate*, MessagePortArray* messagePorts, const WebBlobInfoArray*);
 
 private:
     static SerializedScriptValueFactory& instance()
     {
         if (!m_instance) {
             NOTREACHED();
             m_instance = new SerializedScriptValueFactory;
         }
         return *m_instance;
     }
 
     void transferData(SerializedScriptValue*, SerializedScriptValueWriter&, Transferables*, ExceptionState&, v8::Isolate*);
 
     static SerializedScriptValueFactory* m_instance;
 };
 
 } // namespace blink
 
 #endif // SerializedScriptValueFactory_h