[Binding] [Refactoring] Make SerializedScriptValueWriter protected

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

Index: third_party/WebKit/Source/bindings/core/v8/SerializedScriptValueFactory.cpp
diff --git a/third_party/WebKit/Source/bindings/core/v8/SerializedScriptValueFactory.cpp b/third_party/WebKit/Source/bindings/core/v8/SerializedScriptValueFactory.cpp
index 9ef4f1ad122fb17a48e74c2c59df7a0cd33777e2..ffcc7200ba68f28a7b9600692edaa1dda85b9cf5 100644
--- a/third_party/WebKit/Source/bindings/core/v8/SerializedScriptValueFactory.cpp
+++ b/third_party/WebKit/Source/bindings/core/v8/SerializedScriptValueFactory.cpp
@@ -53,14 +53,6 @@ PassRefPtr<SerializedScriptValue> SerializedScriptValueFactory::create(v8::Isola
     return create(isolate, value, writer, transferables, blobInfo, exceptionState);
 }
 
-PassRefPtr<SerializedScriptValue> SerializedScriptValueFactory::create(const String& data)
-{
-    SerializedScriptValueWriter writer;
-    writer.writeWebCoreString(data);
-    String wireData = writer.takeWireString();
-    return SerializedScriptValue::create(wireData);
-}
-
 void SerializedScriptValueFactory::transferData(SerializedScriptValue* serializedValue, SerializedScriptValueWriter& writer, Transferables* transferables, ExceptionState& exceptionState, v8::Isolate* isolate)
 {
     serializedValue->setData(writer.takeWireString());