Roll src/net/third_party/quiche/src/ b69b65388..3df755e29 (19 commits)

https://quiche.googlesource.com/quiche.git/+log/b69b65388336..3df755e294e6

$ git log b69b65388..3df755e29 --date=short --no-merges --format='%ad %ae %s'
2021-07-26 haoyuewang Internal change
2021-07-26 fayang Downgrade QUIC_BUG to QUIC_DLOG while client sends stream data while 0-RTT gets rejected and 1-RTT keys are not yet available. Also, removed QUIC_BUG while trying to send control frames before encryption gets established.
2021-07-26 haoyuewang Flip --gfe2_reloadable_flag_quic_ack_cid_frames in Chrome as the broken tests are fixed by https://chromium-review.googlesource.com/c/chromium/src/+/3043202
2021-07-23 quiche-dev Initialize SimpleRandom::buffer_offset_ in quic_test_utils
2021-07-23 quiche-dev Fixes the nghttp2_data_provider adapter to return an accurate status value when a DataFrameSource indicates fin with no data.
2021-07-23 quiche-dev Adds tests for the conversion from DataFrameSource to nghttp2_data_provider.
2021-07-23 quiche-dev Removes unused DataSource interface and implementation.
2021-07-23 quiche-dev Adds nullptr guards to invocations of nghttp2 callbacks within CallbackVisitor.
2021-07-23 haoyuewang Internal change
2021-07-22 dschinazi Fix QUIC insecure randomness on Windows 7
2021-07-22 quiche-dev Splits nghttp2-specific test utilities into nghttp2_test_utils.{h,cc}.
2021-07-22 fayang Automated g4 rollback of changelist 384571235.
2021-07-22 bnc Add HttpDecoder::IsBufferedFrame().
2021-07-22 wub Internal change
2021-07-22 bnc Add pointers embedding QUICHE in README.md.
2021-07-21 wub Introduce QUIC connection dapper tracing in GFE2.
2021-07-21 wub Default enable --gfe2_reloadable_flag_quic_run_default_signature_callback_once.
2021-07-21 wub Add regression test for b/194177024.
2021-07-20 bnc Remove and rename HttpDecoder methods.

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

Change-Id: Ie69a3ede3a04b5464ad36b2a67d45a3acf270ae5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3054455
Reviewed-by: Bence Béky <bnc@chromium.org>
Commit-Queue: Fan Yang <fayang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#905379}

DEPS

@@ -351,7 +351,7 @@ 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': 'b69b653883363564d8cd93cbed561bb859d9bfc1',
+  'quiche_revision': '3df755e294e6654a727d1aeb7e61ee3b8c6eed54',
   # 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.