Gather serialization-related code into a directory.

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

 // 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.
 
 #include "bindings/core/v8/GeneratedCodeHelper.h"
 
-#include "bindings/core/v8/SerializedScriptValue.h"
 #include "bindings/core/v8/V8BindingForCore.h"
+#include "bindings/core/v8/serialization/SerializedScriptValue.h"
 
 namespace blink {
 
 void V8ConstructorAttributeGetter(
     v8::Local<v8::Name> property_name,
     const v8::PropertyCallbackInfo<v8::Value>& info) {
   v8::Local<v8::Value> data = info.Data();
   DCHECK(data->IsExternal());
   V8PerContextData* per_context_data =
       V8PerContextData::From(info.Holder()->CreationContext());
   if (!per_context_data)
     return;
   V8SetReturnValue(info, per_context_data->ConstructorForType(
                              WrapperTypeInfo::Unwrap(data)));
 }
 
 v8::Local<v8::Value> V8Deserialize(v8::Isolate* isolate,
                                    PassRefPtr<SerializedScriptValue> value) {
   if (value)
     return value->Deserialize(isolate);
   return v8::Null(isolate);
 }
 
 }  // namespace blink