Log GOAWAY frame debug data.

net/tools/flip_server/spdy_interface.h

Index: net/tools/flip_server/spdy_interface.h
diff --git a/net/tools/flip_server/spdy_interface.h b/net/tools/flip_server/spdy_interface.h
index cbaeab1894ab51f60a61acafe6a17a57c643b416..45d1885e11d906c3ab1369e23cff3fecdf654c92 100644
--- a/net/tools/flip_server/spdy_interface.h
+++ b/net/tools/flip_server/spdy_interface.h
@@ -125,7 +125,8 @@ class SpdySM : public BufferedSpdyFramerVisitorInterface, public SMInterface {
 
   // Called when a GOAWAY frame has been parsed.
   void OnGoAway(SpdyStreamId last_accepted_stream_id,
-                SpdyGoAwayStatus status) override {}
+                SpdyGoAwayStatus status,
+                StringPiece debug_data) override {}
 
   // Called when a WINDOW_UPDATE frame has been parsed.
   void OnWindowUpdate(SpdyStreamId stream_id, int delta_window_size) override {}