Roll src/net/third_party/quiche/src/ 8963f6066..281f7a982 (3 commits)

https://quiche.googlesource.com/quiche.git/+log/8963f6066333..281f7a98285d

$ git log 8963f6066..281f7a982 --date=short --no-merges --format='%ad %ae %s'
2020-05-18 fayang Deprecate gfe2_reloadable_flag_quic_bbr_use_available_min_rtt.
2020-05-18 fayang Internal QUICHE change
2020-05-15 dschinazi Remove unused kMaxReasonableInitialPacketNumber

Created with:
  roll-dep src/net/third_party/quiche/src src/third_party/quic_trace/src

Change-Id: I6fba2c699578e3d44e38e9c8d3cb79cb6b38b2a1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2207623
Commit-Queue: Zhongyi Shi <zhongyi@chromium.org>
Auto-Submit: Bence Béky <bnc@chromium.org>
Reviewed-by: Zhongyi Shi <zhongyi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#769885}

DEPS

@@ -305,7 +305,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.
-  'quiche_revision': '8963f60663337706a28d7f448384daa7baeba74e',
+  'quiche_revision': '281f7a98285d4e1543863c36f08d5e9266970fb1',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling ios_webkit
   # and whatever else without interference from each other.

net/quic/quic_flags_list.h

@@ -347,7 +347,7 @@ QUIC_FLAG(bool,
 // quic_time_wait_list_manager with a new TimeWaitAction.
 QUIC_FLAG(bool,
           FLAGS_quic_restart_flag_quic_replace_time_wait_list_encryption_level,
-          false)
+          true)
 
 // If true, move Goolge QUIC stream accounting to LegacyQuicStreamIdManager.
 QUIC_FLAG(bool,
@@ -360,9 +360,6 @@ QUIC_FLAG(bool, FLAGS_quic_reloadable_flag_quic_enable_tls_resumption, false)
 // When true, QUIC's BBRv2 ignores inflight_lo in PROBE_BW.
 QUIC_FLAG(bool, FLAGS_quic_reloadable_flag_quic_bbr2_ignore_inflight_lo, false)
 
-// If true, returns min_rtt in rtt_stats_ if it is available.
-QUIC_FLAG(bool, FLAGS_quic_reloadable_flag_quic_bbr_use_available_min_rtt, true)
-
 // If true, notify handshakers when connection closes.
 QUIC_FLAG(bool,
           FLAGS_quic_reloadable_flag_quic_notify_handshaker_on_connection_close,