Deprecate FLAGS_quic_read_packets_full_recvmmsg.

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"
 
 bool FLAGS_quic_allow_oversized_packets_for_test = false;
 
 // When true, the use time based loss detection instead of nack.
 bool FLAGS_quic_use_time_loss_detection = false;
@@ skipping 51 matching lines @@
 // instead of a set.
 bool FLAGS_quic_packet_queue_use_interval_set = true;
 
 // If true, Cubic's epoch is shifted when the sender is application-limited.
 bool FLAGS_shift_quic_cubic_epoch_when_app_limited = true;
 
 // If true, accounts for available (implicitly opened) streams under a separate
 // quota from open streams, which is 10 times larger.
 bool FLAGS_allow_many_available_streams = true;
 
-// If true, QuicPacketReader::ReadAndDispatchPackets will only return true if
-// recvmmsg fills all of the passed in messages. Otherwise, it will return true
-// if recvmmsg read any messages.
-bool FLAGS_quic_read_packets_full_recvmmsg = true;
-
 // If true, QUIC will measure head of line (HOL) blocking due between
 // streams due to packet losses on the headers stream.  The
 // measurements will be surfaced via UMA histogram
 // Net.QuicSession.HeadersHOLBlockedTime.
 bool FLAGS_quic_measure_headers_hol_blocking_time = true;
 
 // Disable QUIC's userspace pacing.
 bool FLAGS_quic_disable_pacing = false;
 
 // If true, a FIN received on a stream with read_side_closed_ true will be
@@ skipping 23 matching lines @@
 // 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_alarm = true;
 
 // If true, allow each quic stream to write 16k blocks rather than doing a round
 // robin of one packet per session when ack clocked or paced.
 bool FLAGS_quic_batch_writes = true;