Revert of Add new, unused methods to SpdyFramerVisitorInterface.

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 e9918a83c142182eb9c6af920a37f43498b74511..45d1885e11d906c3ab1369e23cff3fecdf654c92 100644
--- a/net/tools/flip_server/spdy_interface.h
+++ b/net/tools/flip_server/spdy_interface.h
@@ -108,20 +108,6 @@
   // |stream_id| The stream receiving data.
   // |len| The number of padding octets.
   void OnStreamPadding(SpdyStreamId stream_id, size_t len) override;
-
-  // Called just before processing the payload of a frame containing header
-  // data. Should return an implementation of SpdyHeadersHandlerInterface that
-  // will receive headers for stream |stream_id|. The caller will not take
-  // ownership of the headers handler. The same instance should be returned
-  // for all header frames comprising a logical header block (i.e. until
-  // OnHeaderFrameEnd() is called with end_headers == true).
-  SpdyHeadersHandlerInterface* OnHeaderFrameStart(
-      SpdyStreamId stream_id) override;
-
-  // Called after processing the payload of a frame containing header data.
-  // |end_headers| is true if there will not be any subsequent CONTINUATION
-  // frames.
-  void OnHeaderFrameEnd(SpdyStreamId stream_id, bool end_headers) override;
 
   // Called when a SETTINGS frame is received.
   // |clear_persisted| True if the respective flag is set on the SETTINGS frame.