RefCounted types should not have public destructors, media/ and gpu/ edition

media/filters/ffmpeg_audio_decoder.h

Index: media/filters/ffmpeg_audio_decoder.h
diff --git a/media/filters/ffmpeg_audio_decoder.h b/media/filters/ffmpeg_audio_decoder.h
index 51d8e003ec02dc73eacba1e8df98612d3c376beb..04739a263353599a57b8e4989a66e9c8754f8e93 100644
--- a/media/filters/ffmpeg_audio_decoder.h
+++ b/media/filters/ffmpeg_audio_decoder.h
@@ -20,7 +20,6 @@ class DataBuffer;
 class MEDIA_EXPORT FFmpegAudioDecoder : public AudioDecoder {
  public:
   FFmpegAudioDecoder(const base::Callback<MessageLoop*()>& message_loop_cb);
-  virtual ~FFmpegAudioDecoder();
 
   // AudioDecoder implementation.
   virtual void Initialize(const scoped_refptr<DemuxerStream>& stream,
@@ -32,6 +31,9 @@ class MEDIA_EXPORT FFmpegAudioDecoder : public AudioDecoder {
   virtual int samples_per_second() OVERRIDE;
   virtual void Reset(const base::Closure& closure) OVERRIDE;
 
+ protected:
+  virtual ~FFmpegAudioDecoder();
+
  private:
   // Methods running on decoder thread.
   void DoInitialize(const scoped_refptr<DemuxerStream>& stream,