Move workers to Chromium threading

Source/core/dom/ScriptExecutionContext.cpp

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  * Copyright (C) 2012 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 125 matching lines @@
         // as a result is that dispatchMessages() will be called needlessly.
         if (m_messagePorts.contains(port) && port->started())
             port->dispatchMessages();
     }
 }
 
 void ScriptExecutionContext::createdMessagePort(MessagePort* port)
 {
     ASSERT(port);
     ASSERT((isDocument() && isMainThread())
-        || (isWorkerContext() && currentThread() == static_cast<WorkerContext*>(this)->thread()->threadID()));
+        || (isWorkerContext() && static_cast<WorkerContext*>(this)->thread()->isCurrentThread()));
 
     m_messagePorts.add(port);
 }
 
 void ScriptExecutionContext::destroyedMessagePort(MessagePort* port)
 {
     ASSERT(port);
     ASSERT((isDocument() && isMainThread())
-        || (isWorkerContext() && currentThread() == static_cast<WorkerContext*>(this)->thread()->threadID()));
+        || (isWorkerContext() && static_cast<WorkerContext*>(this)->thread()->isCurrentThread()));
 
     m_messagePorts.remove(port);
 }
 
 bool ScriptExecutionContext::canSuspendActiveDOMObjects()
 {
     // No protection against m_activeDOMObjects changing during iteration: canSuspend() shouldn't execute arbitrary JS.
     m_iteratingActiveDOMObjects = true;
     ActiveDOMObjectsSet::iterator activeObjectsEnd = m_activeDOMObjects.end();
     for (ActiveDOMObjectsSet::iterator iter = m_activeDOMObjects.begin(); iter != activeObjectsEnd; ++iter) {
@@ skipping 202 matching lines @@
 {
 }
 
 void ScriptExecutionContext::setDatabaseContext(DatabaseContext* databaseContext)
 {
     ASSERT(!m_databaseContext);
     m_databaseContext = databaseContext;
 }
 
 } // namespace WebCore