Revert of Add task location information to ExecutionContext

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 405 matching lines @@
         WorkerGlobalScope* workerGlobalScope = toWorkerGlobalScope(context);
         workerGlobalScope->stopActiveDOMObjects();
         PlatformThreadData::current().threadTimers().setSharedTimer(nullptr);
 
         // Event listeners would keep DOMWrapperWorld objects alive for too long. Also, they have references to JS objects,
         // which become dangling once Heap is destroyed.
         workerGlobalScope->removeAllEventListeners();
 
         // Stick a shutdown command at the end of the queue, so that we deal
         // with all the cleanup tasks the databases post first.
-        workerGlobalScope->postTask(FROM_HERE, WorkerThreadShutdownFinishTask::create());
+        workerGlobalScope->postTask(WorkerThreadShutdownFinishTask::create());
     }
 
     virtual bool isCleanupTask() const { return true; }
 };
 
 void WorkerThread::stop()
 {
     // Prevent the deadlock between GC and an attempt to stop a thread.
     ThreadState::SafePointScope safePointScope(ThreadState::HeapPointersOnStack);
     stopInternal();
@@ skipping 133 matching lines @@
     InspectorInstrumentation::didLeaveNestedRunLoop(m_workerGlobalScope.get());
 }
 
 void WorkerThread::setWorkerInspectorController(WorkerInspectorController* workerInspectorController)
 {
     MutexLocker locker(m_workerInspectorControllerMutex);
     m_workerInspectorController = workerInspectorController;
 }
 
 } // namespace blink