Revert of Add task location information to ExecutionContext

Source/core/workers/WorkerObjectProxy.cpp

Index: Source/core/workers/WorkerObjectProxy.cpp
diff --git a/Source/core/workers/WorkerObjectProxy.cpp b/Source/core/workers/WorkerObjectProxy.cpp
index 9cf78b2a51b0cd7ad76c0fae11028f21989e14a3..f24aaec24a27926be0208edffa98b6ef9ab28ed1 100644
--- a/Source/core/workers/WorkerObjectProxy.cpp
+++ b/Source/core/workers/WorkerObjectProxy.cpp
@@ -49,55 +49,55 @@
 
 void WorkerObjectProxy::postMessageToWorkerObject(PassRefPtr<SerializedScriptValue> message, PassOwnPtr<MessagePortChannelArray> channels)
 {
-    m_executionContext->postTask(FROM_HERE, createCrossThreadTask(&WorkerMessagingProxy::postMessageToWorkerObject, m_messagingProxy, message, channels));
+    m_executionContext->postTask(createCrossThreadTask(&WorkerMessagingProxy::postMessageToWorkerObject, m_messagingProxy, message, channels));
 }
 
 void WorkerObjectProxy::postTaskToMainExecutionContext(PassOwnPtr<ExecutionContextTask> task)
 {
-    m_executionContext->postTask(FROM_HERE, task);
+    m_executionContext->postTask(task);
 }
 
 void WorkerObjectProxy::confirmMessageFromWorkerObject(bool hasPendingActivity)
 {
-    m_executionContext->postTask(FROM_HERE, createCrossThreadTask(&WorkerMessagingProxy::confirmMessageFromWorkerObject, m_messagingProxy, hasPendingActivity));
+    m_executionContext->postTask(createCrossThreadTask(&WorkerMessagingProxy::confirmMessageFromWorkerObject, m_messagingProxy, hasPendingActivity));
 }
 
 void WorkerObjectProxy::reportPendingActivity(bool hasPendingActivity)
 {
-    m_executionContext->postTask(FROM_HERE, createCrossThreadTask(&WorkerMessagingProxy::reportPendingActivity, m_messagingProxy, hasPendingActivity));
+    m_executionContext->postTask(createCrossThreadTask(&WorkerMessagingProxy::reportPendingActivity, m_messagingProxy, hasPendingActivity));
 }
 
 void WorkerObjectProxy::reportException(const String& errorMessage, int lineNumber, int columnNumber, const String& sourceURL, int exceptionId)
 {
-    m_executionContext->postTask(FROM_HERE, createCrossThreadTask(&WorkerMessagingProxy::reportException, m_messagingProxy, errorMessage, lineNumber, columnNumber, sourceURL, exceptionId));
+    m_executionContext->postTask(createCrossThreadTask(&WorkerMessagingProxy::reportException, m_messagingProxy, errorMessage, lineNumber, columnNumber, sourceURL, exceptionId));
 }
 
 void WorkerObjectProxy::reportConsoleMessage(PassRefPtrWillBeRawPtr<ConsoleMessage> consoleMessage)
 {
-    m_executionContext->postTask(FROM_HERE, createCrossThreadTask(&WorkerMessagingProxy::reportConsoleMessage, m_messagingProxy, consoleMessage->source(), consoleMessage->level(), consoleMessage->message(), consoleMessage->lineNumber(), consoleMessage->url()));
+    m_executionContext->postTask(createCrossThreadTask(&WorkerMessagingProxy::reportConsoleMessage, m_messagingProxy, consoleMessage->source(), consoleMessage->level(), consoleMessage->message(), consoleMessage->lineNumber(), consoleMessage->url()));
 }
 
 void WorkerObjectProxy::postMessageToPageInspector(const String& message)
 {
     if (m_executionContext->isDocument())
-        toDocument(m_executionContext)->postInspectorTask(FROM_HERE, createCrossThreadTask(&WorkerMessagingProxy::postMessageToPageInspector, m_messagingProxy, message));
+        toDocument(m_executionContext)->postInspectorTask(createCrossThreadTask(&WorkerMessagingProxy::postMessageToPageInspector, m_messagingProxy, message));
 }
 
 void WorkerObjectProxy::postWorkerConsoleAgentEnabled()
 {
     if (m_executionContext->isDocument())
-        toDocument(m_executionContext)->postInspectorTask(FROM_HERE, createCrossThreadTask(&WorkerMessagingProxy::postWorkerConsoleAgentEnabled, m_messagingProxy));
+        toDocument(m_executionContext)->postInspectorTask(createCrossThreadTask(&WorkerMessagingProxy::postWorkerConsoleAgentEnabled, m_messagingProxy));
 }
 
 void WorkerObjectProxy::workerGlobalScopeClosed()
 {
-    m_executionContext->postTask(FROM_HERE, createCrossThreadTask(&WorkerMessagingProxy::terminateWorkerGlobalScope, m_messagingProxy));
+    m_executionContext->postTask(createCrossThreadTask(&WorkerMessagingProxy::terminateWorkerGlobalScope, m_messagingProxy));
 }
 
 void WorkerObjectProxy::workerThreadTerminated()
 {
     // This will terminate the MessagingProxy.
-    m_executionContext->postTask(FROM_HERE, createCrossThreadTask(&WorkerMessagingProxy::workerThreadTerminated, m_messagingProxy));
+    m_executionContext->postTask(createCrossThreadTask(&WorkerMessagingProxy::workerThreadTerminated, m_messagingProxy));
 }
 
 WorkerObjectProxy::WorkerObjectProxy(ExecutionContext* executionContext, WorkerMessagingProxy* messagingProxy)