Revert of Add task location information to ExecutionContext

Source/core/testing/NullExecutionContext.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NullExecutionContext_h
 #define NullExecutionContext_h
 
 #include "core/dom/ExecutionContext.h"
 #include "core/dom/SecurityContext.h"
 #include "core/events/EventQueue.h"
 #include "core/inspector/ConsoleMessage.h"
 #include "core/inspector/ScriptCallStack.h"
 #include "platform/heap/Handle.h"
 #include "platform/weborigin/KURL.h"
 #include "wtf/RefCounted.h"
 
 namespace blink {
 
 class NullExecutionContext final : public RefCountedWillBeGarbageCollectedFinalized<NullExecutionContext>, public SecurityContext, public ExecutionContext {
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(NullExecutionContext);
 public:
     NullExecutionContext();
 
     virtual void disableEval(const String&) override { }
     virtual String userAgent(const KURL&) const override { return String(); }
 
-    virtual void postTask(const WebTraceLocation&, PassOwnPtr<ExecutionContextTask>) override;
+    virtual void postTask(PassOwnPtr<ExecutionContextTask>) override;
 
     virtual EventTarget* errorEventTarget() override { return nullptr; }
     virtual EventQueue* eventQueue() const override { return m_queue.get(); }
 
     virtual bool tasksNeedSuspension() override { return m_tasksNeedSuspension; }
     void setTasksNeedSuspension(bool flag) { m_tasksNeedSuspension = flag; }
 
     virtual void reportBlockedScriptExecutionToInspector(const String& directiveText) override { }
     virtual void didUpdateSecurityOrigin() override { }
     virtual SecurityContext& securityContext() override { return *this; }
@@ skipping 25 matching lines @@
 private:
     bool m_tasksNeedSuspension;
     OwnPtrWillBeMember<EventQueue> m_queue;
 
     KURL m_dummyURL;
 };
 
 } // namespace blink
 
 #endif // NullExecutionContext_h