Revert of Add task location information to WorkerThread

Source/core/workers/WorkerThread.h

 /*
  * 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 65 matching lines @@
 
     bool isCurrentThread() const;
     WorkerLoaderProxy* workerLoaderProxy() const
     {
         RELEASE_ASSERT(m_workerLoaderProxy);
         return m_workerLoaderProxy.get();
     }
 
     WorkerReportingProxy& workerReportingProxy() const { return m_workerReportingProxy; }
 
-    void postTask(const WebTraceLocation&, PassOwnPtr<ExecutionContextTask>);
-    void postDebuggerTask(const WebTraceLocation&, PassOwnPtr<ExecutionContextTask>);
+    void postTask(PassOwnPtr<ExecutionContextTask>);
+    void postDebuggerTask(PassOwnPtr<ExecutionContextTask>);
 
     enum WaitMode { WaitForMessage, DontWaitForMessage };
     MessageQueueWaitResult runDebuggerTask(WaitMode = WaitForMessage);
 
     // These methods should be called if the holder of the thread is
     // going to call runDebuggerTask in a loop.
     void willEnterNestedLoop();
     void didLeaveNestedLoop();
 
     WorkerGlobalScope* workerGlobalScope() const { return m_workerGlobalScope.get(); }
@@ skipping 18 matching lines @@
 private:
     friend class WorkerSharedTimer;
     friend class WorkerThreadShutdownFinishTask;
 
     void stopInShutdownSequence();
     void stopInternal();
 
     void initialize();
     void cleanup();
     void idleHandler();
-    void postDelayedTask(const WebTraceLocation&, PassOwnPtr<ExecutionContextTask>, long long delayMs);
+    void postDelayedTask(PassOwnPtr<ExecutionContextTask>, long long delayMs);
 
     bool m_terminated;
     OwnPtr<WorkerSharedTimer> m_sharedTimer;
     MessageQueue<WorkerThreadTask> m_debuggerMessageQueue;
     OwnPtr<WebThread::TaskObserver> m_microtaskRunner;
 
     RefPtr<WorkerLoaderProxy> m_workerLoaderProxy;
     WorkerReportingProxy& m_workerReportingProxy;
 
     RefPtrWillBePersistent<WorkerInspectorController> m_workerInspectorController;
@@ skipping 13 matching lines @@
     // WorkerThread might get deleted before it had a chance to properly
     // shut down. By deleting the WebThread first, we can guarantee that
     // no pending tasks on the thread might want to access any of the other
     // members during the WorkerThread's destruction.
     OwnPtr<WebThreadSupportingGC> m_thread;
 };
 
 } // namespace blink
 
 #endif // WorkerThread_h