Revert of Add task location information to ExecutionContext

Source/core/workers/WorkerGlobalScope.cpp

Index: Source/core/workers/WorkerGlobalScope.cpp
diff --git a/Source/core/workers/WorkerGlobalScope.cpp b/Source/core/workers/WorkerGlobalScope.cpp
index b01764c797f57833bc397ac5ff07c1986b4f6c1d..0617ab47c55862a7e09b0e168949a3791af4442c 100644
--- a/Source/core/workers/WorkerGlobalScope.cpp
+++ b/Source/core/workers/WorkerGlobalScope.cpp
@@ -176,7 +176,7 @@
     // After m_closing is set, all the tasks in the queue continue to be fetched but only
     // tasks with isCleanupTask()==true will be executed.
     m_closing = true;
-    postTask(FROM_HERE, CloseWorkerGlobalScopeTask::create());
+    postTask(CloseWorkerGlobalScopeTask::create());
 }
 
 WorkerConsole* WorkerGlobalScope::console()
@@ -193,7 +193,7 @@
     return m_navigator.get();
 }
 
-void WorkerGlobalScope::postTask(const WebTraceLocation& location, PassOwnPtr<ExecutionContextTask> task)
+void WorkerGlobalScope::postTask(PassOwnPtr<ExecutionContextTask> task)
 {
     thread()->postTask(task);
 }
@@ -296,7 +296,7 @@
 {
     RefPtrWillBeRawPtr<ConsoleMessage> consoleMessage = prpConsoleMessage;
     if (!isContextThread()) {
-        postTask(FROM_HERE, AddConsoleMessageTask::create(consoleMessage->source(), consoleMessage->level(), consoleMessage->message()));
+        postTask(AddConsoleMessageTask::create(consoleMessage->source(), consoleMessage->level(), consoleMessage->message()));
         return;
     }
     thread()->workerReportingProxy().reportConsoleMessage(consoleMessage);