Remove unnecessary condition for audioSourceProvider

Source/core/html/HTMLMediaElement.h

 /*
  * Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 224 matching lines @@
     void sourceWasAdded(HTMLSourceElement*);
 
     // ActiveDOMObject functions.
     bool hasPendingActivity() const final;
     void contextDestroyed() final;
 
 #if ENABLE(WEB_AUDIO)
     AudioSourceProviderClient* audioSourceNode() { return m_audioSourceNode; }
     void setAudioSourceNode(AudioSourceProviderClient*);
 
-    AudioSourceProvider* audioSourceProvider() { return &m_audioSourceProvider; }
+    AudioSourceProvider& audioSourceProvider() { return m_audioSourceProvider; }
 #endif
 
     enum InvalidURLAction { DoNothing, Complain };
     bool isSafeToLoadURL(const KURL&, InvalidURLAction);
 
     // Checks to see if current media data is CORS-same-origin as the
     // specified origin.
     bool isMediaDataCORSSameOrigin(SecurityOrigin*) const;
 
     MediaController* controller() const;
@@ skipping 369 matching lines @@
 inline bool isHTMLMediaElement(const HTMLElement& element)
 {
     return isHTMLAudioElement(element) || isHTMLVideoElement(element);
 }
 
 DEFINE_HTMLELEMENT_TYPE_CASTS_WITH_FUNCTION(HTMLMediaElement);
 
 } // namespace blink
 
 #endif // HTMLMediaElement_h