Remove ThreadLocalEventNames

Source/modules/mediasource/MediaSource.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 192 matching lines @@
 
     // 3. If type contains a media type or media subtype that the MediaSource does not support, then return false.
     // 4. If type contains at a codec that the MediaSource does not support, then return false.
     // 5. If the MediaSource does not support the specified combination of media type, media subtype, and codecs then return false.
     // 6. Return true.
     return MIMETypeRegistry::isSupportedMediaSourceMIMEType(contentType.type(), codecs);
 }
 
 const AtomicString& MediaSource::interfaceName() const
 {
-    return eventNames().interfaceForMediaSource;
+    return EventTargetNames::MediaSource;
 }
 
 } // namespace WebCore