DevTools: log worker thread ids on the main thread when Timeline recording is enabled

Source/core/workers/WorkerThread.cpp

 /*
  * Copyright (C) 2008 Apple 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 218 matching lines @@
     m_thread->postTask(new Task(WTF::bind(&WorkerThread::initialize, this)));
 }
 
 void WorkerThread::interruptAndDispatchInspectorCommands()
 {
     MutexLocker locker(m_workerInspectorControllerMutex);
     if (m_workerInspectorController)
         m_workerInspectorController->interruptAndDispatchInspectorCommands();
 }
 
+PlatformThreadId WorkerThread::platformThreadId() const
+{
+    if (!m_thread)
+        return 0;
+    return m_thread->threadId();
+}
+
 void WorkerThread::initialize()
 {
     KURL scriptURL = m_startupData->m_scriptURL;
     String sourceCode = m_startupData->m_sourceCode;
     WorkerThreadStartMode startMode = m_startupData->m_startMode;
 
     {
         MutexLocker lock(m_threadCreationMutex);
 
         // The worker was terminated before the thread had a chance to run.
@@ skipping 240 matching lines @@
     InspectorInstrumentation::didLeaveNestedRunLoop(m_workerGlobalScope.get());
 }
 
 void WorkerThread::setWorkerInspectorController(WorkerInspectorController* workerInspectorController)
 {
     MutexLocker locker(m_workerInspectorControllerMutex);
     m_workerInspectorController = workerInspectorController;
 }
 
 } // namespace blink