Add counters for add/removeEventListener() called with one argument

Source/core/events/EventTarget.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  *           (C) 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ skipping 104 matching lines @@
     void deref() { derefEventTarget(); }
 #endif
 
     virtual const AtomicString& interfaceName() const = 0;
     virtual ExecutionContext* executionContext() const = 0;
 
     virtual Node* toNode();
     virtual LocalDOMWindow* toDOMWindow();
     virtual MessagePort* toMessagePort();
 
-    // FIXME: first 2 args to addEventListener and removeEventListener should
-    // be required (per spec), but throwing TypeError breaks legacy content.
-    // http://crbug.com/353484
-    bool addEventListener();
-    virtual bool addEventListener(const AtomicString& eventType, PassRefPtr<EventListener>, bool useCapture = false);
-    bool removeEventListener();
-    virtual bool removeEventListener(const AtomicString& eventType, PassRefPtr<EventListener>, bool useCapture = false);
+    virtual bool addEventListener(const AtomicString& eventType, PassRefPtr<EventListener>, bool useCapture);
+    virtual bool removeEventListener(const AtomicString& eventType, PassRefPtr<EventListener>, bool useCapture);
     virtual void removeAllEventListeners();
     virtual bool dispatchEvent(PassRefPtrWillBeRawPtr<Event>);
     bool dispatchEvent(PassRefPtrWillBeRawPtr<Event>, ExceptionState&); // DOM API
     virtual void uncaughtExceptionInEventHandler();
 
     // Used for legacy "onEvent" attribute APIs.
     bool setAttributeEventListener(const AtomicString& eventType, PassRefPtr<EventListener>);
     EventListener* getAttributeEventListener(const AtomicString& eventType);
 
     bool hasEventListeners() const;
@@ skipping 156 matching lines @@
     using baseClass::deref; \
 private: \
     virtual void refEventTarget() override final { ref(); } \
     virtual void derefEventTarget() override final { deref(); } \
     typedef int thisIsHereToForceASemiColonAfterThisEventTargetMacro
 #define REFCOUNTED_EVENT_TARGET(baseClass) DEFINE_EVENT_TARGET_REFCOUNTING(RefCounted<baseClass>)
 #define REFCOUNTED_GARBAGE_COLLECTED_EVENT_TARGET(baseClass) DEFINE_EVENT_TARGET_REFCOUNTING(RefCountedGarbageCollected<baseClass>)
 #endif // ENABLE(OILPAN)
 
 #endif // EventTarget_h