Revert of Add task location information to ExecutionContext

Source/web/ServiceWorkerGlobalScopeProxy.cpp

 /*
  * Copyright (C) 2013 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 172 matching lines @@
     m_client.reportException(errorMessage, lineNumber, columnNumber, sourceURL);
 }
 
 void ServiceWorkerGlobalScopeProxy::reportConsoleMessage(PassRefPtrWillBeRawPtr<ConsoleMessage> consoleMessage)
 {
     m_client.reportConsoleMessage(consoleMessage->source(), consoleMessage->level(), consoleMessage->message(), consoleMessage->lineNumber(), consoleMessage->url());
 }
 
 void ServiceWorkerGlobalScopeProxy::postMessageToPageInspector(const String& message)
 {
-    m_document.postInspectorTask(FROM_HERE, createCrossThreadTask(&WebEmbeddedWorkerImpl::postMessageToPageInspector, &m_embeddedWorker, message));
+    m_document.postInspectorTask(createCrossThreadTask(&WebEmbeddedWorkerImpl::postMessageToPageInspector, &m_embeddedWorker, message));
 }
 
 void ServiceWorkerGlobalScopeProxy::didEvaluateWorkerScript(bool success)
 {
     m_client.didEvaluateWorkerScript(success);
 }
 
 void ServiceWorkerGlobalScopeProxy::workerGlobalScopeStarted(WorkerGlobalScope* workerGlobalScope)
 {
     ASSERT(!m_workerGlobalScope);
     m_workerGlobalScope = static_cast<ServiceWorkerGlobalScope*>(workerGlobalScope);
     m_client.workerContextStarted(this);
 }
 
 void ServiceWorkerGlobalScopeProxy::workerGlobalScopeClosed()
 {
-    m_document.postTask(FROM_HERE, createCrossThreadTask(&WebEmbeddedWorkerImpl::terminateWorkerContext, &m_embeddedWorker));
+    m_document.postTask(createCrossThreadTask(&WebEmbeddedWorkerImpl::terminateWorkerContext, &m_embeddedWorker));
 }
 
 void ServiceWorkerGlobalScopeProxy::willDestroyWorkerGlobalScope()
 {
     m_workerGlobalScope = 0;
     m_client.willDestroyWorkerContext();
 }
 
 void ServiceWorkerGlobalScopeProxy::workerThreadTerminated()
 {
     m_client.workerContextDestroyed();
 }
 
 ServiceWorkerGlobalScopeProxy::ServiceWorkerGlobalScopeProxy(WebEmbeddedWorkerImpl& embeddedWorker, Document& document, WebServiceWorkerContextClient& client)
     : m_embeddedWorker(embeddedWorker)
     , m_document(document)
     , m_client(client)
     , m_workerGlobalScope(0)
 {
 }
 
 } // namespace blink