QuicAlarms are now allocated out of an arena in QuicConnection

net/quic/quic_flags.cc

 // Copyright 2014 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.
 
 #include "net/quic/quic_flags.h"
 
 // When true, the use time based loss detection instead of nack.
 bool FLAGS_quic_use_time_loss_detection = false;
 
 // If true, it will return as soon as an error is detected while validating
@@ skipping 64 matching lines @@
 bool FLAGS_quic_disable_pacing = false;
 
 // If true, Use QUIC's GeneralLossAlgorithm implementation instead of
 // TcpLossAlgorithm or TimeLossAlgorithm.
 bool FLAGS_quic_general_loss_algorithm = true;
 
 // If true, only migrate QUIC connections when client address changes are
 // considered to be caused by NATs.
 bool FLAGS_quic_disable_non_nat_address_migration = true;
 
+// If true, QuicOneBlockArenas will allocate out of their local memory.
+// Otherwise, they will always use the heap.
+bool FLAGS_quic_enable_arena_allocation = true;
+
 // If true, QUIC connections will timeout when packets are not being recieved,
 // even if they are being sent.
 bool FLAGS_quic_use_new_idle_timeout = true;
 
 // If true, replace QuicFrameList with StreamSequencerBuffer as underlying data
 // structure for QuicStreamSequencer bufferring.
 bool FLAGS_quic_use_stream_sequencer_buffer = true;
 
 // If true, don't send QUIC packets if the send alarm is set.
 bool FLAGS_quic_respect_send_alarm2 = true;
@@ skipping 51 matching lines @@
 
 // If true, drop not awaited QUIC packets before decrypting them.
 bool FLAGS_quic_drop_non_awaited_packets = false;
 
 // If true, use the fast implementation of IncrementalHash/FNV1a_128_Hash.
 bool FLAGS_quic_utils_use_fast_incremental_hash = true;
 
 // If true, require QUIC connections to use a valid server nonce or a non-local
 // strike register.
 bool FLAGS_require_strike_register_or_server_nonce = true;