Move workers to Chromium threading

Source/core/workers/WorkerContext.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 81 matching lines @@
     , m_closing(false)
     , m_eventQueue(WorkerEventQueue::create(this))
     , m_topOrigin(topOrigin)
 {
     ScriptWrappable::init(this);
     setSecurityOrigin(SecurityOrigin::create(url));
 }
 
 WorkerContext::~WorkerContext()
 {
-    ASSERT(currentThread() == thread()->threadID());
+    ASSERT(thread()->isCurrentThread());
 
     // Make sure we have no observers.
     notifyObserversOfStop();
 
     // Notify proxy that we are going away. This can free the WorkerThread object, so do not access it after this.
     thread()->workerReportingProxy().workerContextDestroyed();
 }
 
 void WorkerContext::applyContentSecurityPolicyFromString(const String& policy, ContentSecurityPolicy::HeaderType contentSecurityPolicyType)
 {
@@ skipping 182 matching lines @@
 {
     ASSERT(isContextThread());
     if (callStack)
         InspectorInstrumentation::addMessageToConsole(this, source, LogMessageType, level, message, callStack, requestIdentifier);
     else
         InspectorInstrumentation::addMessageToConsole(this, source, LogMessageType, level, message, sourceURL, lineNumber, state, requestIdentifier);
 }
 
 bool WorkerContext::isContextThread() const
 {
-    return currentThread() == thread()->threadID();
+    return thread()->isCurrentThread();
 }
 
 bool WorkerContext::isJSExecutionForbidden() const
 {
     return m_script->isExecutionForbidden();
 }
 
 EventTargetData* WorkerContext::eventTargetData()
 {
     return &m_eventTargetData;
@@ skipping 50 matching lines @@
         iter = m_workerObservers.begin();
     }
 }
 
 WorkerEventQueue* WorkerContext::eventQueue() const
 {
     return m_eventQueue.get();
 }
 
 } // namespace WebCore