Remove PathCloseFrame, QuicPathId, DefaultPathId and InvalidPathId.

net/tools/quic/quic_packet_printer_bin.cc

 // 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.
 
 // clang-format off
 
 // Dumps out the decryptable contents of a QUIC packet in a human-readable way.
 // If the packet is null encrypted, this will dump full packet contents.
 // Otherwise it will dump the public header, and fail with an error that the
 // packet is undecryptable.
@@ skipping 124 matching lines @@
     return true;
   }
   bool OnWindowUpdateFrame(const QuicWindowUpdateFrame& frame) override {
     std::cerr << "OnWindowUpdateFrame: " << frame;
     return true;
   }
   bool OnBlockedFrame(const QuicBlockedFrame& frame) override {
     std::cerr << "OnBlockedFrame: " << frame;
     return true;
   }
-  bool OnPathCloseFrame(const QuicPathCloseFrame& frame) override {
-    std::cerr << "OnPathCloseFrame:" << frame;
-    return true;
-  }
   void OnPacketComplete() override { std::cerr << "OnPacketComplete\n"; }
 
  private:
   QuicFramer* framer_;  // Unowned.
 };
 
 }  // namespace net
 
 int main(int argc, char* argv[]) {
   base::CommandLine::Init(argc, argv);
@@ skipping 31 matching lines @@
       if (net::QuicVersionToString(version) == FLAGS_quic_version) {
         framer.set_version(version);
       }
     }
   }
   net::QuicPacketPrinter visitor(&framer);
   framer.set_visitor(&visitor);
   net::QuicEncryptedPacket encrypted(hex.c_str(), hex.length());
   return framer.ProcessPacket(encrypted);
 }