Remove PathCloseFrame, QuicPathId, DefaultPathId and InvalidPathId.

net/tools/quic/quic_dispatcher.h

 // Copyright (c) 2012 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.
 //
 // A server side dispatcher which dispatches a given client's data to their
 // stream.
 
 #ifndef NET_TOOLS_QUIC_QUIC_DISPATCHER_H_
 #define NET_TOOLS_QUIC_QUIC_DISPATCHER_H_
 
@@ skipping 123 matching lines @@
   bool OnStreamFrame(const QuicStreamFrame& frame) override;
   bool OnAckFrame(const QuicAckFrame& frame) override;
   bool OnStopWaitingFrame(const QuicStopWaitingFrame& frame) override;
   bool OnPaddingFrame(const QuicPaddingFrame& frame) override;
   bool OnPingFrame(const QuicPingFrame& frame) override;
   bool OnRstStreamFrame(const QuicRstStreamFrame& frame) override;
   bool OnConnectionCloseFrame(const QuicConnectionCloseFrame& frame) override;
   bool OnGoAwayFrame(const QuicGoAwayFrame& frame) override;
   bool OnWindowUpdateFrame(const QuicWindowUpdateFrame& frame) override;
   bool OnBlockedFrame(const QuicBlockedFrame& frame) override;
-  bool OnPathCloseFrame(const QuicPathCloseFrame& frame) override;
   void OnPacketComplete() override;
 
   // QuicBufferedPacketStore::VisitorInterface implementation.
   void OnExpiredPackets(QuicConnectionId connection_id,
                         QuicBufferedPacketStore::BufferedPacketList
                             early_arrived_packets) override;
 
   // Create connections for previously buffered CHLOs as many as allowed.
   virtual void ProcessBufferedChlos(size_t max_connections_to_create);
 
@@ skipping 229 matching lines @@
   // A backward counter of how many new sessions can be create within current
   // event loop. When reaches 0, it means can't create sessions for now.
   int16_t new_sessions_allowed_per_event_loop_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicDispatcher);
 };
 
 }  // namespace net
 
 #endif  // NET_TOOLS_QUIC_QUIC_DISPATCHER_H_