Landing Recent QUIC changes until Mon Apr 17 2017

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 44 matching lines @@
 QUIC_FLAG(bool,
           FLAGS_quic_reloadable_flag_quic_use_cheap_stateless_rejects,
           true)
 
 // If true, QUIC respect HTTP2 SETTINGS frame rather than always close the
 // connection.
 QUIC_FLAG(bool,
           FLAGS_quic_reloadable_flag_quic_respect_http2_settings_frame,
           true)
 
-// If true, re-enables QUIC_VERSION_36.
-QUIC_FLAG(bool, FLAGS_quic_reloadable_flag_quic_enable_version_36_v3, true)
-
 // If true, only open limited number of quic sessions per epoll event. Leave the
 // rest to next event.
 QUIC_FLAG(bool,
           FLAGS_quic_reloadable_flag_quic_limit_num_new_sessions_per_epoll_loop,
           true)
 
 // If true, QUIC server push will enabled by default.
 QUIC_FLAG(bool,
           FLAGS_quic_reloadable_flag_quic_enable_server_push_by_default,
           true)
@@ skipping 34 matching lines @@
 
 // If true, GFE sends SETTINGS_MAX_HEADER_LIST_SIZE to the client at the
 // beginning of a connection.
 QUIC_FLAG(bool, FLAGS_quic_reloadable_flag_quic_send_max_header_list_size, true)
 
 // If true, fix quantization of CubicBytes while performing convex increases.
 QUIC_FLAG(bool,
           FLAGS_quic_reloadable_flag_quic_fix_cubic_bytes_quantization,
           false)
 
-// If true, Makes GFE respect the connection options for initial flow control
-// window larger than 32 KB.
-QUIC_FLAG(bool, FLAGS_quic_reloadable_flag_quic_large_ifw_options, true)
-
 // If true, fix Cubic\'s use of kBetaLastMax for n-connection emulation.
 QUIC_FLAG(bool, FLAGS_quic_reloadable_flag_quic_fix_beta_last_max, false)
 
-// If true, enable QUIC v37.
-QUIC_FLAG(bool, FLAGS_quic_reloadable_flag_quic_enable_version_37, true)
-
-// If true, disables QUIC v34.
-QUIC_FLAG(bool, FLAGS_quic_reloadable_flag_quic_disable_version_34, true)
-
 // If greater than zero, mean RTT variation is multiplied by the specified
 // factor and added to the congestion window limit.
 QUIC_FLAG(double, FLAGS_quic_bbr_rtt_variation_weight, 0.0f)
 
 // Congestion window gain for QUIC BBR during PROBE_BW phase.
 QUIC_FLAG(double, FLAGS_quic_bbr_cwnd_gain, 2.0f)
 
 // If true, bidi streaming is always enabled in QUIC.
 QUIC_FLAG(bool,
           FLAGS_quic_reloadable_flag_quic_always_enable_bidi_streaming,
           true)
 
 // If true, allows the 1RTT and 2RTT connection options to reduce the time
 // in BBR STARTUP to 1 or 2 RTTs with no bandwidth increase from 3.
-QUIC_FLAG(bool, FLAGS_quic_reloadable_flag_quic_allow_2_rtt_bbr_startup, false)
+QUIC_FLAG(bool, FLAGS_quic_reloadable_flag_quic_allow_2_rtt_bbr_startup, true)
 
 // If true, do not send or process stop waiting frames in QUIC if the NSTP
 // connection option is provided.
 QUIC_FLAG(bool, FLAGS_quic_reloadable_flag_quic_no_stop_waiting_frames, false)
 
 // Allows one self address change.
 QUIC_FLAG(bool, FLAGS_quic_reloadable_flag_quic_allow_one_address_change, false)
 
-// If true, no longer send or process the SRBF value in QuicConfig.
-QUIC_FLAG(bool, FLAGS_quic_reloadable_flag_quic_no_socket_receive_buffer, false)
-
 // If true, multipath bit is not used in public flag.
 QUIC_FLAG(bool, FLAGS_quic_reloadable_flag_quic_remove_multipath_bit, false)
 
 // Allow QUIC's flow control autotuning to increase the window as
 // quickly for the first adjustment as in subsequent ones.
 QUIC_FLAG(bool,
           FLAGS_quic_reloadable_flag_quic_flow_control_faster_autotune,
           true)
 
-// Only consider using the ack spacing in QUIC BBR if 2 packets are acked at
-// once.
-QUIC_FLAG(bool, FLAGS_quic_reloadable_flag_quic_bbr_ack_spacing2, false)
-
 // If true, QUIC BBR stores a max filtered number of bytes delivered at a rate
 // faster than the sending rate.
 QUIC_FLAG(bool,
           FLAGS_quic_reloadable_flag_quic_bbr_ack_aggregation_bytes,
           false)
 
 // If true, allow cubic updates on every ack, rather than occasionally limiting
 // the frequency to once every 30ms.
 QUIC_FLAG(bool,
           FLAGS_quic_reloadable_flag_quic_enable_cubic_per_ack_updates,
           false)
 
 // Support bandwidth resumption in QUIC BBR.
 QUIC_FLAG(bool, FLAGS_quic_reloadable_flag_quic_bbr_bandwidth_resumption, false)
 
 // Add the equivalent number of bytes as 3 TCP TSO segments to QUIC's BBR CWND.
 QUIC_FLAG(bool, FLAGS_quic_reloadable_flag_quic_bbr_add_tso_cwnd, false)
 
-// Fix a crash that occurs when a client sends multiple CHLOs close together on
-// the same connection.
-QUIC_FLAG(bool, FLAGS_quic_reloadable_flag_fix_quic_callback_crash, true)
-
 // If true, enable version 38 which supports new PADDING frame and respects NSTP
 // connection option.
 QUIC_FLAG(bool, FLAGS_quic_reloadable_flag_quic_enable_version_38, true)
 
 // If true, enable QUIC v39.
 QUIC_FLAG(bool, FLAGS_quic_enable_version_39, false)
 
 // If true, on client side, 8-byte connection ID in public header is read and
 // written in big endian.
 QUIC_FLAG(bool,
           FLAGS_quic_restart_flag_quic_big_endian_connection_id_client,
           false)
 
 // If true, on server side, 8-byte connection ID in public header is read and
 // written in big endian.
 QUIC_FLAG(bool,
           FLAGS_quic_restart_flag_quic_big_endian_connection_id_server,
           false)
 
 // Simplify QUIC\'s adaptive time loss detection to measure the necessary
 // reordering window for every spurious retransmit.
 QUIC_FLAG(bool, FLAGS_quic_reloadable_flag_quic_fix_adaptive_time_loss, false)
+
+// In QUIC BBR, keep sending at the max bandwidth observed in the previous 2
+// RTTs for another SRTT.
+QUIC_FLAG(bool,
+          FLAGS_quic_reloadable_flag_quic_bbr_keep_sending_at_recent_rate,
+          false)
+
+// Base CWND on SRTT instead of min_rtt for QUIC BBR.
+QUIC_FLAG(bool, FLAGS_quic_reloadable_flag_quic_bbr_base_cwnd_on_srtt, false)
+
+// If true, enable random padding of size [1, 256] when response body is
+// compressed for QUIC version >= 38.
+QUIC_FLAG(bool, FLAGS_quic_reloadable_flag_quic_enable_random_padding, false)