relnote: Implements OnHeaderFrameStart and OnHeaderFrameEnd in QuicHeadersStream. Not used in produ…

net/spdy/spdy_headers_handler_interface.h

Index: net/spdy/spdy_headers_handler_interface.h
diff --git a/net/spdy/spdy_headers_handler_interface.h b/net/spdy/spdy_headers_handler_interface.h
index a6861afa21723d068e4a6ae8323d6273406ca851..99944c67afb0c6c0df53860a6e43c6142a328913 100644
--- a/net/spdy/spdy_headers_handler_interface.h
+++ b/net/spdy/spdy_headers_handler_interface.h
@@ -8,12 +8,13 @@
 #include <stddef.h>
 
 #include "base/strings/string_piece.h"
+#include "net/base/net_export.h"
 
 namespace net {
 
 // This interface defines how an object that accepts header data should behave.
 // It is used by both SpdyHeadersBlockParser and HpackDecoder.
-class SpdyHeadersHandlerInterface {
+class NET_EXPORT_PRIVATE SpdyHeadersHandlerInterface {
  public:
   virtual ~SpdyHeadersHandlerInterface() {}