Roll src/net/third_party/quiche/src/ 1618f0d88..0be7fce4c (11 commits)

https://quiche.googlesource.com/quiche.git/+log/1618f0d88fdc..0be7fce4c6e4

$ git log 1618f0d88..0be7fce4c --date=short --no-merges --format='%ad %ae %s'
2020-03-20 renjietang Simplify QuicUtils::GetMaxStreamCount() because it's never used in gQUIC.
2020-03-19 fayang gfe-relnote: Stop using SetDefaultEncryptionLevel in TLS handshake. Instead, use OnOneRttKeysAvailable. Refactor only, no functional change expected, not protected.
2020-03-19 renjietang Update QuicFramer methods' names to match IETF draft specs. Also removed unused peer methods.
2020-03-19 quiche-dev Change QuartcPeerTest to use a MockSendAlgorithm.
2020-03-19 wub gfe-relnote: (n/a) Use QuicIntervalSet::AddOptimizedForAppend in QuicStreamSendBuffer to optimize sequentially acked ranges. No behavior change, not protected.
2020-03-19 wub gfe-relnote: (n/a) Add a bunch of logging to debug b/151424244. Logging only, not protected.
2020-03-19 nharper Enable TLS for more tests in //gfe/gfe2/quic:end_to_end_test
2020-03-19 fayang gfe-relnote: In QUIC, remove SendStreamsBlocked from QuicStreamIdManager::DelegateInterface . Refactoring only, no functional change expected, not protected.
2020-03-19 fayang gfe-relnote: In QUIC, rewrite QuicStreamIdManager::MaybeIncreaseLargestPeerStreamId to make it easier to read. Refactoring only, no functional change expected, not protected.
2020-03-19 fayang gfe-relnote: Fix a bug where ResetPromised does not check IsClosedStream(). Not affecting prod, not protected.
2020-03-19 wub gfe-relnote: In a QUIC connection, if a write error happens after a successful MTU probe, ignore this error and rollback to the previous MTU before the probe. Protected by --gfe2_reloadable_flag_quic_ignore_one_write_error_after_mtu_probe.

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

update flags

R=zhongyi@chromium.org

Change-Id: Ieff489883b304f6fad3a56179fea27daabc3a832
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2112932
Commit-Queue: Dan Zhang <danzh@chromium.org>
Reviewed-by: Zhongyi Shi <zhongyi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#752251}

DEPS

@@ -306,7 +306,7 @@ 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': '1618f0d88fdc69f410e5b2aaf40e5708a89d04e6',
+  'quiche_revision': '0be7fce4c6e4911295b2985175a1752b0e9ebb0a',
   # 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

@@ -276,12 +276,6 @@ QUIC_FLAG(bool,
 // If true, use predictable grease settings identifiers and values.
 QUIC_FLAG(bool, FLAGS_quic_enable_http3_grease_randomness, true)
 
-// If true and batch writer is used, QuicConnection will flush after a mtu probe
-// is sent.
-QUIC_FLAG(bool,
-          FLAGS_quic_reloadable_flag_quic_batch_writer_flush_after_mtu_probe,
-          true)
-
 // When the EACK connection option is sent by the client, an ack-eliciting frame
 // is bundled with ACKs sent after the PTO fires.
 QUIC_FLAG(bool,
@@ -346,13 +340,13 @@ QUIC_FLAG(bool,
 // ACK frame.
 QUIC_FLAG(bool,
           FLAGS_quic_reloadable_flag_quic_use_ack_frame_to_get_min_size,
-          false)
+          true)
 
 // If true, skip packet threshold loss detection if largest acked is a runt.
 QUIC_FLAG(
     bool,
     FLAGS_quic_reloadable_flag_quic_skip_packet_threshold_loss_detection_with_runt,
-    false)
+    true)
 
 // If true, QUIC BBRv2 to take ack height into account when calculating
 // queuing_threshold in PROBE_UP.
@@ -386,3 +380,9 @@ QUIC_FLAG(bool,
 QUIC_FLAG(bool,
           FLAGS_quic_reloadable_flag_quic_bw_sampler_app_limited_starting_value,
           false)
+
+// If true, QUIC connection will ignore one packet write error after MTU probe.
+QUIC_FLAG(
+    bool,
+    FLAGS_quic_reloadable_flag_quic_ignore_one_write_error_after_mtu_probe,
+    false)