Add new, unused methods to SpdyFramerVisitorInterface.

net/quic/quic_headers_stream.cc

Index: net/quic/quic_headers_stream.cc
diff --git a/net/quic/quic_headers_stream.cc b/net/quic/quic_headers_stream.cc
index d86437f2a8e3a644c39e1668c0921b53143b515c..5b1f942610fa1e379aef374c25370df6a33a4d8d 100644
--- a/net/quic/quic_headers_stream.cc
+++ b/net/quic/quic_headers_stream.cc
@@ -73,6 +73,16 @@ class QuicHeadersStream::SpdyFramerVisitor
     CloseConnection("SPDY frame padding received.");
   }
 
+  SpdyHeadersHandlerInterface* OnHeaderFrameStart(
+      SpdyStreamId stream_id) override {
+    LOG(FATAL);
+    return nullptr;
+  }
+
+  void OnHeaderFrameEnd(SpdyStreamId stream_id, bool end_headers) override {
+    LOG(FATAL);
+  }
+
   void OnError(SpdyFramer* framer) override {
     CloseConnection(base::StringPrintf(
         "SPDY framing error: %s",