RefCounted types should not have public destructors, delegate cleanup

media/video/video_decode_accelerator.h

Index: media/video/video_decode_accelerator.h
diff --git a/media/video/video_decode_accelerator.h b/media/video/video_decode_accelerator.h
index c04d8dc4baa1cc51d6a490b95337b9253b1d6c7a..83d0b95631ca775fdfcb9ec34ef515568481f7dc 100644
--- a/media/video/video_decode_accelerator.h
+++ b/media/video/video_decode_accelerator.h
@@ -46,8 +46,6 @@ class MEDIA_EXPORT VideoDecodeAccelerator
   // implements.
   class MEDIA_EXPORT Client {
    public:
-    virtual ~Client() {}
-
     // Callback to notify client that decoder has been initialized.
     virtual void NotifyInitializeDone() = 0;
 
@@ -74,6 +72,9 @@ class MEDIA_EXPORT VideoDecodeAccelerator
 
     // Callback to notify about decoding errors.
     virtual void NotifyError(Error error) = 0;
+
+   protected:
+    virtual ~Client() {}
   };
 
   // Video decoder functions.