Gather serialization-related code into a directory.

third_party/WebKit/Source/modules/notifications/NotificationData.cpp

 // Copyright 2015 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 "modules/notifications/NotificationData.h"
 
 #include "bindings/core/v8/ExceptionState.h"
-#include "bindings/core/v8/SerializedScriptValue.h"
-#include "bindings/core/v8/SerializedScriptValueFactory.h"
+#include "bindings/core/v8/serialization/SerializedScriptValue.h"
+#include "bindings/core/v8/serialization/SerializedScriptValueFactory.h"
 #include "core/dom/ExecutionContext.h"
 #include "modules/notifications/Notification.h"
 #include "modules/notifications/NotificationOptions.h"
 #include "modules/vibration/VibrationController.h"
 #include "platform/wtf/CurrentTime.h"
 #include "public/platform/WebURL.h"
 
 namespace blink {
 namespace {
 
@@ skipping 112 matching lines @@
 
     actions.push_back(web_action);
   }
 
   web_data.actions = actions;
 
   return web_data;
 }
 
 }  // namespace blink