Update from https://crrev.com/312398

net/quic/quic_dispatcher.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/quic/quic_dispatcher.h"
 
 #include <errno.h>
 
 #include "base/debug/stack_trace.h"
 #include "base/logging.h"
@@ skipping 80 matching lines @@
     DCHECK(false);
   }
   bool OnStreamFrame(const QuicStreamFrame& /*frame*/) override {
     DCHECK(false);
     return false;
   }
   bool OnAckFrame(const QuicAckFrame& /*frame*/) override {
     DCHECK(false);
     return false;
   }
-  bool OnCongestionFeedbackFrame(
-      const QuicCongestionFeedbackFrame& /*frame*/) override {
-    DCHECK(false);
-    return false;
-  }
   bool OnStopWaitingFrame(const QuicStopWaitingFrame& /*frame*/) override {
     DCHECK(false);
     return false;
   }
   bool OnPingFrame(const QuicPingFrame& /*frame*/) override {
     DCHECK(false);
     return false;
   }
   bool OnRstStreamFrame(const QuicRstStreamFrame& /*frame*/) override {
     DCHECK(false);
@@ skipping 281 matching lines @@
   // be parsed correctly.
   framer_.set_version(time_wait_list_manager_->GetQuicVersionFromConnectionId(
       header.connection_id));
 
   // Continue parsing the packet to extract the sequence number.  Then
   // send it to the time wait manager in OnUnathenticatedHeader.
   return true;
 }
 
 }  // namespace net