Expose performance.memory in workers

Source/core/workers/WorkerGlobalScope.cpp

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  * Copyright (C) 2009, 2011 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 55 matching lines @@
     virtual void performTask(ExecutionContext *context)
     {
         WorkerGlobalScope* workerGlobalScope = toWorkerGlobalScope(context);
         // Notify parent that this context is closed. Parent is responsible for calling WorkerThread::stop().
         workerGlobalScope->thread()->workerReportingProxy().workerGlobalScopeClosed();
     }
 
     virtual bool isCleanupTask() const { return true; }
 };
 
-WorkerGlobalScope::WorkerGlobalScope(const KURL& url, const String& userAgent, WorkerThread* thread, double timeOrigin, PassOwnPtr<WorkerClients> workerClients)
+WorkerGlobalScope::WorkerGlobalScope(const KURL& url, const String& userAgent, WorkerThread* thread, double timeOrigin, const WorkerSettings& settings, PassOwnPtr<WorkerClients> workerClients)
     : m_url(url)
     , m_userAgent(userAgent)
     , m_script(adoptPtr(new WorkerScriptController(*this)))
     , m_thread(thread)
     , m_workerInspectorController(adoptPtr(new WorkerInspectorController(this)))
     , m_closing(false)
     , m_eventQueue(WorkerEventQueue::create(this))
     , m_workerClients(workerClients)
     , m_timeOrigin(timeOrigin)
+    , m_workerSettings(WorkerSettings::create())
 {
     ScriptWrappable::init(this);
     setClient(this);
     setSecurityOrigin(SecurityOrigin::create(url));
+    m_workerSettings->setMemoryInfoEnabled(settings.memoryInfoEnabled());
     m_workerClients->reattachThread();
 }
 
 WorkerGlobalScope::~WorkerGlobalScope()
 {
     ASSERT(thread()->isCurrentThread());
 
     // Make sure we have no observers.
     notifyObserversOfStop();
 
@@ skipping 224 matching lines @@
 {
     return script()->idleNotification();
 }
 
 WorkerEventQueue* WorkerGlobalScope::eventQueue() const
 {
     return m_eventQueue.get();
 }
 
 } // namespace WebCore