Deprecate gfe2_reloadable_flag_quic_fix_min_crypto_frame_size.

PiperOrigin-RevId: 320957243
Change-Id: I61c4a2132b942eef6a0237a435937f7f10cf7173

quic/core/quic_connection_test.cc

diff --git a/quic/core/quic_connection_test.cc b/quic/core/quic_connection_test.cc
index 91d42db..62aa83f 100644
--- a/quic/core/quic_connection_test.cc
+++ b/quic/core/quic_connection_test.cc
@@ -11275,12 +11275,7 @@
   if (!connection_.version().CanSendCoalescedPackets()) {
     return;
   }
-  if (GetQuicReloadableFlag(quic_fix_extra_padding_bytes) ||
-      GetQuicReloadableFlag(quic_fix_min_crypto_frame_size)) {
-    EXPECT_CALL(visitor_, OnHandshakePacketSent()).Times(1);
-  } else {
-    EXPECT_CALL(visitor_, OnHandshakePacketSent()).Times(0);
-  }
+  EXPECT_CALL(visitor_, OnHandshakePacketSent()).Times(1);
   {
     QuicConnection::ScopedPacketFlusher flusher(&connection_);
     use_tagging_decrypter();
@@ -11292,21 +11287,9 @@
     SendStreamDataToPeer(2, std::string(1286, 'a'), 0, NO_FIN, nullptr);
     connection_.SetDefaultEncryptionLevel(ENCRYPTION_HANDSHAKE);
     // Try to coalesce a HANDSHAKE packet after 1-RTT packet.
-    if (GetQuicReloadableFlag(quic_fix_extra_padding_bytes) ||
-        GetQuicReloadableFlag(quic_fix_min_crypto_frame_size)) {
-      // Verify soft max packet length gets resumed and handshake packet gets
-      // successfully sent.
-      connection_.SendCryptoDataWithString("a", 0, ENCRYPTION_HANDSHAKE);
-    } else {
-      // Problematic: creator thinks there is space to consume 1-byte, however,
-      // extra paddings make the serialization fail because of
-      // MinPlaintextPacketSize.
-      EXPECT_CALL(visitor_,
-                  OnConnectionClosed(_, ConnectionCloseSource::FROM_SELF));
-      EXPECT_QUIC_BUG(
-          connection_.SendCryptoDataWithString("a", 0, ENCRYPTION_HANDSHAKE),
-          "AppendPaddingFrame of 3 failed");
-    }
+    // Verify soft max packet length gets resumed and handshake packet gets
+    // successfully sent.
+    connection_.SendCryptoDataWithString("a", 0, ENCRYPTION_HANDSHAKE);
   }
 }
 

quic/core/quic_packet_creator.cc

diff --git a/quic/core/quic_packet_creator.cc b/quic/core/quic_packet_creator.cc
index f509692..066763a 100644
--- a/quic/core/quic_packet_creator.cc
+++ b/quic/core/quic_packet_creator.cc
@@ -444,9 +444,7 @@
   size_t min_frame_size =
       QuicFramer::GetMinCryptoFrameSize(write_length, offset);
   size_t min_plaintext_bytes = min_frame_size;
-  if (!fix_extra_padding_bytes_ && fix_min_crypto_frame_size_ &&
-      queued_frames_.empty()) {
-    QUIC_RELOADABLE_FLAG_COUNT(quic_fix_min_crypto_frame_size);
+  if (!fix_extra_padding_bytes_ && queued_frames_.empty()) {
     min_plaintext_bytes =
         std::max(min_frame_size, MinPlaintextPacketSize(framer_->version()));
   }

quic/core/quic_packet_creator.h

diff --git a/quic/core/quic_packet_creator.h b/quic/core/quic_packet_creator.h
index e5a73c3..80e35be 100644
--- a/quic/core/quic_packet_creator.h
+++ b/quic/core/quic_packet_creator.h
@@ -635,9 +635,6 @@
   const bool avoid_leak_writer_buffer_ =
       GetQuicReloadableFlag(quic_avoid_leak_writer_buffer);
 
-  const bool fix_min_crypto_frame_size_ =
-      GetQuicReloadableFlag(quic_fix_min_crypto_frame_size);
-
   // When true, this will override the padding generation code to disable it.
   // TODO(fayang): remove this when deprecating
   // quic_determine_serialized_packet_fate_early.