Roll src/net/third_party/quiche/src/ 1c2d1ab18..3ecc53bf3 (6 commits)

https://quiche.googlesource.com/quiche.git/+log/1c2d1ab18e85..3ecc53bf310c

$ git log 1c2d1ab18..3ecc53bf3 --date=short --no-merges --format='%ad %ae %s'
2020-03-12 fayang gfe-relnote: Initialize packet_number_space to invalid value in GetRetransmissionTime. No functional change expected, not protected.
2020-03-12 bnc gfe-relnote: Change error code sent on unknown unidirectional stream type.  Protected by gfe2_reloadable_flag_quic_enable_version_draft_25_v3 and gfe2_reloadable_flag_quic_enable_version_draft_27.
2020-03-11 renjietang Let QuicSession's various write methods set transmission type.
2020-03-11 fayang Internal QUICHE change
2020-03-11 dschinazi Enable additional warning
2020-03-11 bnc Rewrite QuicTypesTest.QuicIetfTransportErrorCodeString.

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

Change-Id: I1bdc374934728b1b8d708b3e0ac4fe204917bdd3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2101409
Commit-Queue: Zhongyi Shi <zhongyi@chromium.org>
Commit-Queue: Nick Harper <nharper@chromium.org>
Auto-Submit: Zhongyi Shi <zhongyi@chromium.org>
Reviewed-by: Nick Harper <nharper@chromium.org>
Cr-Commit-Position: refs/heads/master@{#749931}

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': '1c2d1ab18e85ca256ff767a74e583b910396202c',
+  'quiche_revision': '3ecc53bf310c6f7d0b1f2240290ed14f716d6341',
   # 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

@@ -394,3 +394,6 @@ QUIC_FLAG(
     bool,
     FLAGS_quic_reloadable_flag_quic_send_ping_when_pto_skips_packet_number,
     true)
+
+// If true, QuicSession\'s various write methods will set transmission type.
+QUIC_FLAG(bool, FLAGS_quic_reloadable_flag_quic_write_with_transmission, false)