Process HTTP/2 ALTSVC frames.

net/spdy/buffered_spdy_framer.cc

Index: net/spdy/buffered_spdy_framer.cc
diff --git a/net/spdy/buffered_spdy_framer.cc b/net/spdy/buffered_spdy_framer.cc
index e8ef21206a03d9634f710a14d5b972c6362dba2c..a7216895dd429a79f99ed99bf90a43c10f7c7d42 100644
--- a/net/spdy/buffered_spdy_framer.cc
+++ b/net/spdy/buffered_spdy_framer.cc
@@ -326,6 +326,13 @@ void BufferedSpdyFramer::OnPushPromise(SpdyStreamId stream_id,
   InitHeaderStreaming(stream_id);
 }
 
+void BufferedSpdyFramer::OnAltSvc(
+    SpdyStreamId stream_id,
+    base::StringPiece origin,
+    const SpdyAltSvcWireFormat::AlternativeServiceVector& altsvc_vector) {
+  visitor_->OnAltSvc(stream_id, origin, altsvc_vector);
+}
+
 void BufferedSpdyFramer::OnContinuation(SpdyStreamId stream_id, bool end) {
 }