[Binding] [Refactoring] Make SerializedScriptValueWriter protected

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

 /*
  * Copyright (C) 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 47 matching lines @@
 
 namespace blink {
 
 PassRefPtr<SerializedScriptValue> SerializedScriptValue::serialize(v8::Isolate* isolate, v8::Local<v8::Value> value, Transferables* transferables, WebBlobInfoArray* blobInfo, ExceptionState& exception)
 {
     return SerializedScriptValueFactory::instance().create(isolate, value, transferables, blobInfo, exception);
 }
 
 PassRefPtr<SerializedScriptValue> SerializedScriptValue::serialize(const String& str)
 {
-    return SerializedScriptValueFactory::instance().create(str);
+    return create(ScriptValueSerializer::serializeWTFString(str));
 }
 
 PassRefPtr<SerializedScriptValue> SerializedScriptValue::serializeAndSwallowExceptions(v8::Isolate* isolate, v8::Local<v8::Value> value)
 {
     TrackExceptionState exceptionState;
     return serialize(isolate, value, nullptr, nullptr, exceptionState);
 }
 
 PassRefPtr<SerializedScriptValue> SerializedScriptValue::create()
 {
@@ skipping 39 matching lines @@
     // used in a context other than Worker's onmessage environment and the presence of
     // current v8 context is not guaranteed. Avoid calling v8 then.
     if (m_externallyAllocatedMemory) {
         ASSERT(v8::Isolate::GetCurrent());
         v8::Isolate::GetCurrent()->AdjustAmountOfExternalAllocatedMemory(-m_externallyAllocatedMemory);
     }
 }
 
 PassRefPtr<SerializedScriptValue> SerializedScriptValue::nullValue()
 {
-    SerializedScriptValueWriter writer;
-    writer.writeNull();
-    return create(writer.takeWireString());
+    return create(ScriptValueSerializer::serializeNullValue());
 }
 
 // Convert serialized string to big endian wire data.
 void SerializedScriptValue::toWireBytes(Vector<char>& result) const
 {
     ASSERT(result.isEmpty());
     size_t length = m_data.length();
     result.resize(length * sizeof(UChar));
     UChar* dst = reinterpret_cast<UChar*>(result.data());
 
@@ skipping 211 matching lines @@
     m_externallyAllocatedMemory = static_cast<intptr_t>(m_data.length());
     v8::Isolate::GetCurrent()->AdjustAmountOfExternalAllocatedMemory(m_externallyAllocatedMemory);
 }
 
 bool SerializedScriptValue::containsTransferableArrayBuffer() const
 {
     return m_arrayBufferContentsArray && !m_arrayBufferContentsArray->isEmpty();
 }
 
 } // namespace blink