Remove PathCloseFrame, QuicPathId, DefaultPathId and InvalidPathId.

net/tools/quic/quic_packet_printer_bin.cc

Index: net/tools/quic/quic_packet_printer_bin.cc
diff --git a/net/tools/quic/quic_packet_printer_bin.cc b/net/tools/quic/quic_packet_printer_bin.cc
index ccac643744eda8de6cca9d9ef03dfc1a1062057a..aa26b479369c90a3f77aba04150b5db03f146553 100644
--- a/net/tools/quic/quic_packet_printer_bin.cc
+++ b/net/tools/quic/quic_packet_printer_bin.cc
@@ -142,10 +142,6 @@ class QuicPacketPrinter : public QuicFramerVisitorInterface {
     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: