Set flags.

net/quic/core/quic_flags_list.h

 // 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.
 
 // This file intentionally does not have header guards, it's included
 // inside a macro to generate values.
 
 // This file contains the list of QUIC protocol flags.
 
 // If true, QUIC BBR congestion control may be enabled via Finch and/or via QUIC
@@ skipping 88 matching lines @@
 // skew.
 QUIC_FLAG(bool, FLAGS_quic_send_scfg_ttl, true)
 
 // If true, only open limited number of quic sessions per epoll event. Leave the
 // rest to next event. This flag can be turned on only if
 // --quic_buffer_packet_till_chlo is true.
 QUIC_FLAG(bool, FLAGS_quic_limit_num_new_sessions_per_epoll_loop, false)
 
 // If true, lazy allocate and early release memeory used in
 // QuicStreamSequencerBuffer to buffer incoming data.
-QUIC_FLAG(bool, FLAGS_quic_reduce_sequencer_buffer_memory_life_time, true)

[Ryan Hamilton, 2016/09/20 22:25:50]

Can you ping danzh? IIRC she's doing some chrome-side experimentation with this
flag.

[Jana, 2016/09/20 23:12:51]

Will do.

+QUIC_FLAG(bool, FLAGS_quic_reduce_sequencer_buffer_memory_life_time, false)
 
 // If true, allow server address change if it is because of mapped ipv4 address.
 QUIC_FLAG(bool, FLAGS_quic_allow_server_address_change_for_mapped_ipv4, true)
 
 // If true, disables QUIC version less than 34.
 QUIC_FLAG(bool, FLAGS_quic_disable_pre_34, false)
 
 // When true, decode the packet number from the largest received packet, rather
 // than the most recent.
 QUIC_FLAG(bool, FLAGS_quic_packet_numbers_largest_received, true)
 
 // Only close the connection on the 5th RTO client side when the 5RTO option
 // is enabled.
 QUIC_FLAG(bool, FLAGS_quic_only_5rto_client_side, true)
 
 // If true, QUIC server push will enabled by default.
-QUIC_FLAG(bool, FLAGS_quic_enable_server_push_by_default, true)
+QUIC_FLAG(bool, FLAGS_quic_enable_server_push_by_default, false)
 
 // Only inform the QuicSentPacketManager of packets that were sent,
 // not those that we tried to send.
-QUIC_FLAG(bool, FLAGS_quic_only_track_sent_packets, true)
+QUIC_FLAG(bool, FLAGS_quic_only_track_sent_packets, false)
 
 // If true, connection is closed when packet generator is trying to
 // add a frame which alone cannot fit into a packet.
 QUIC_FLAG(bool, FLAGS_quic_close_connection_on_huge_frames, true)
 
 // As the Linux kernel does, limit QUIC's Cubic congestion control to
 // only increase the CWND 1 packet for every two packets acked.
 QUIC_FLAG(bool, FLAGS_quic_limit_cubic_cwnd_increase, true)