Set FLAGS_shift_quic_cubic_epoch_when_app_limited to false.

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 34 matching lines @@
 
 // If true, multipath is enabled for the connection.
 bool FLAGS_quic_enable_multipath = false;
 
 // If true, require handshake confirmation for QUIC connections, functionally
 // disabling 0-rtt handshakes.
 // TODO(rtenneti): Enable this flag after CryptoServerTest's are fixed.
 bool FLAGS_quic_require_handshake_confirmation = false;
 
 // If true, Cubic's epoch is shifted when the sender is application-limited.
-bool FLAGS_shift_quic_cubic_epoch_when_app_limited = true;
+bool FLAGS_shift_quic_cubic_epoch_when_app_limited = false;
 
 // 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;
 
@@ skipping 73 matching lines @@
 // Ignore the peer's recieve buffer size and instead set max CWND based on the
 // amount of data the sender is willing to have in flight.
 bool FLAGS_quic_ignore_srbf = false;
 
 // Allow the NPRR connection option which reduces QUIC\'s pacing rate during
 // recovery instead of PRR.
 bool FLAGS_quic_allow_noprr = true;
 
 // If true, multi-packet CHLOs are explicitly disallowed.
 bool FLAGS_quic_disallow_multi_packet_chlo = true;