Deprecate --gfe2_reloadable_flag_quic_add_process_packet_context.

PiperOrigin-RevId: 491635277

quiche/quic/core/quic_flags_list.h

diff --git a/quiche/quic/core/quic_flags_list.h b/quiche/quic/core/quic_flags_list.h
index aeefafe..154ad0c 100644
--- a/quiche/quic/core/quic_flags_list.h
+++ b/quiche/quic/core/quic_flags_list.h
@@ -21,8 +21,6 @@
 QUIC_FLAG(quic_reloadable_flag_quic_no_write_control_frame_upon_connection_close, true)
 // If true, QUIC will default enable MTU discovery at server, with a target of 1450 bytes.
 QUIC_FLAG(quic_reloadable_flag_quic_enable_mtu_discovery_at_server, false)
-// If true, QuicConnectionContext will track the decrypted payload and the offset of the current frame, for debugging.
-QUIC_FLAG(quic_reloadable_flag_quic_add_process_packet_context, true)
 // If true, QuicCryptoServerConfig::ParseConfigProtobuf will treat an empty SCID as the same as non-existent.
 QUIC_FLAG(quic_restart_flag_quic_return_error_on_empty_scid, true)
 // If true, QuicGsoBatchWriter will support release time if it is available and the process has the permission to do so.

quiche/quic/core/quic_framer.cc

diff --git a/quiche/quic/core/quic_framer.cc b/quiche/quic/core/quic_framer.cc
index 919deb6..75f40d2 100644
--- a/quiche/quic/core/quic_framer.cc
+++ b/quiche/quic/core/quic_framer.cc
@@ -1907,8 +1907,7 @@
 
   // Remember decrypted_payload in the current connection context until the end
   // of this function.
-  auto* connection_context =
-      add_process_packet_context_ ? QuicConnectionContext::Current() : nullptr;
+  auto* connection_context = QuicConnectionContext::Current();
   if (connection_context != nullptr) {
     connection_context->process_packet_context.decrypted_payload =
         reader.FullPayload();
@@ -1916,7 +1915,6 @@
   }
   auto clear_decrypted_payload = absl::MakeCleanup([&]() {
     if (connection_context != nullptr) {
-      QUIC_RELOADABLE_FLAG_COUNT(quic_add_process_packet_context);
       connection_context->process_packet_context.decrypted_payload =
           absl::string_view();
     }
@@ -3187,8 +3185,7 @@
   }
 
   QUIC_DVLOG(2) << ENDPOINT << "Processing IETF packet with header " << header;
-  auto* connection_context =
-      add_process_packet_context_ ? QuicConnectionContext::Current() : nullptr;
+  auto* connection_context = QuicConnectionContext::Current();
   while (!reader->IsDoneReading()) {
     if (connection_context != nullptr) {
       connection_context->process_packet_context.current_frame_offset =

quiche/quic/core/quic_framer.h

diff --git a/quiche/quic/core/quic_framer.h b/quiche/quic/core/quic_framer.h
index 484d7c1..3f1d011 100644
--- a/quiche/quic/core/quic_framer.h
+++ b/quiche/quic/core/quic_framer.h
@@ -1198,9 +1198,6 @@
   // Indicates whether received RETRY packets should be dropped.
   bool drop_incoming_retry_packets_ = false;
 
-  const bool add_process_packet_context_ =
-      GetQuicReloadableFlag(quic_add_process_packet_context);
-
   // The length in bytes of the last packet number written to an IETF-framed
   // packet.
   size_t last_written_packet_number_length_;