Make the MediaQueryList listener an EventListener

Source/core/css/MediaQueryListListener.h

Index: Source/core/css/MediaQueryListListener.h
diff --git a/Source/core/css/MediaQueryListListener.h b/Source/core/css/MediaQueryListListener.h
index 462f55759a53ce8a5df1dd62a7162c18afd55559..aeff550067fab74d1fba1280cc9e131c517defe9 100644
--- a/Source/core/css/MediaQueryListListener.h
+++ b/Source/core/css/MediaQueryListListener.h
@@ -20,8 +20,6 @@
 #ifndef MediaQueryListListener_h
 #define MediaQueryListListener_h
 
-#include "bindings/core/v8/ScriptState.h"
-#include "bindings/core/v8/ScriptValue.h"
 #include "core/css/MediaQueryList.h"
 #include "platform/heap/Handle.h"
 #include "wtf/RefCounted.h"
@@ -36,35 +34,21 @@ class MediaQueryList;
 // is provided for this purpose.
 class MediaQueryListListener : public RefCountedWillBeGarbageCollectedFinalized<MediaQueryListListener> {
 public:
-    static PassRefPtrWillBeRawPtr<MediaQueryListListener> create(ScriptState* scriptState, const ScriptValue& value)
-    {
-        if (!value.isFunction())
-            return nullptr;
-        return adoptRefWillBeNoop(new MediaQueryListListener(scriptState, value));
-    }
     virtual ~MediaQueryListListener();
 
-    virtual void call();
+    virtual void call() = 0;
 
     // Used to keep the MediaQueryList alive and registered with the MediaQueryMatcher
     // as long as the listener exists.
     void setMediaQueryList(MediaQueryList* query) { m_query = query; }
     void clearMediaQueryList() { m_query = nullptr; }
 
-    bool operator==(const MediaQueryListListener& other) const { return m_function.isNull() ? this == &other : m_function == other.m_function; }
-
     virtual void trace(Visitor* visitor) { visitor->trace(m_query); }
 
 protected:
     MediaQueryListListener();
 
     RefPtrWillBeMember<MediaQueryList> m_query;
-
-private:
-    MediaQueryListListener(ScriptState*, const ScriptValue&);
-
-    RefPtr<ScriptState> m_scriptState;
-    ScriptValue m_function;
 };
 
 }