RefCounted types should not have public destructors, net/ edition

net/spdy/buffered_spdy_framer.h

Index: net/spdy/buffered_spdy_framer.h
diff --git a/net/spdy/buffered_spdy_framer.h b/net/spdy/buffered_spdy_framer.h
index f2eb6f0e86c4584cf0e947306086e808bbb5275c..494238e07f30e622802d92d99b7ed212c41ce7cb 100644
--- a/net/spdy/buffered_spdy_framer.h
+++ b/net/spdy/buffered_spdy_framer.h
@@ -21,7 +21,6 @@ namespace net {
 class NET_EXPORT_PRIVATE BufferedSpdyFramerVisitorInterface {
  public:
   BufferedSpdyFramerVisitorInterface() {}
-  virtual ~BufferedSpdyFramerVisitorInterface() {}
 
   // Called if an error is detected in the SpdyFrame protocol.
   virtual void OnError(SpdyFramer::SpdyError error_code) = 0;
@@ -69,6 +68,9 @@ class NET_EXPORT_PRIVATE BufferedSpdyFramerVisitorInterface {
   // and validated.
   virtual void OnSetting(SpdySettingsIds id, uint8 flags, uint32 value) = 0;
 
+ protected:
+  virtual ~BufferedSpdyFramerVisitorInterface() {}
+
  private:
   DISALLOW_COPY_AND_ASSIGN(BufferedSpdyFramerVisitorInterface);
 };