Use SaveSameObject for Notification.data as well

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

 /*
  * Copyright (C) 2013 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 276 matching lines @@
     return m_data.silent;
 }
 
 bool Notification::requireInteraction() const
 {
     return m_data.requireInteraction;
 }
 
 ScriptValue Notification::data(ScriptState* scriptState)
 {
-    if (m_developerData.isEmpty()) {
-        const WebVector<char>& serializedData = m_data.data;
-        RefPtr<SerializedScriptValue> serializedValue = SerializedScriptValue::create(serializedData.data(), serializedData.size());
-        m_developerData = ScriptValue(scriptState, serializedValue->deserialize(scriptState->isolate()));
-    }
+    const WebVector<char>& serializedData = m_data.data;
+    RefPtr<SerializedScriptValue> serializedValue = SerializedScriptValue::create(serializedData.data(), serializedData.size());
 
-    return m_developerData;
+    return ScriptValue(scriptState, serializedValue->deserialize(scriptState->isolate()));
 }
 
 Vector<v8::Local<v8::Value>> Notification::actions(ScriptState* scriptState) const
 {
     Vector<v8::Local<v8::Value>> actions;
     actions.grow(m_data.actions.size());
 
     for (size_t i = 0; i < m_data.actions.size(); ++i) {
         NotificationAction action;
 
@@ skipping 88 matching lines @@
 
 DEFINE_TRACE(Notification)
 {
     visitor->trace(m_prepareShowMethodRunner);
     visitor->trace(m_loader);
     EventTargetWithInlineData::trace(visitor);
     ActiveDOMObject::trace(visitor);
 }
 
 } // namespace blink