| Index: Source/core/css/MediaQueryListListener.h | 
| diff --git a/Source/core/css/MediaQueryListListener.h b/Source/core/css/MediaQueryListListener.h | 
| index fccf99dbef16b38b1484e0f2b28a99e0d9f723c6..6b1508167584786495e1abe09b15c3fd7b94d582 100644 | 
| --- a/Source/core/css/MediaQueryListListener.h | 
| +++ b/Source/core/css/MediaQueryListListener.h | 
| @@ -35,7 +35,7 @@ public: | 
| static PassRefPtr<MediaQueryListListener> create(const ScriptValue& value) | 
| { | 
| if (!value.isFunction()) | 
| -            return 0; | 
| +            return nullptr; | 
| return adoptRef(new MediaQueryListListener(value)); | 
| } | 
| void queryChanged(ScriptState*, MediaQueryList*); | 
|  |