Roll src/net/third_party/quiche/src/ c691071e9..7be3caccf (6 commits)

https://quiche.googlesource.com/quiche.git/+log/c691071e933e..7be3caccf89c

$ git log c691071e9..7be3caccf --date=short --no-merges --format='%ad %ae %s'
2019-08-02 renjietang Remove completed TODO's.
2019-08-02 renjietang Simply QuicSpdySession::HasActiveRequest().
2019-08-02 dschinazi Enable more TLS stateless reset tests
2019-08-02 ianswett Move local_delayed_ack_time from QuicSentPacketManager to QuicReceivedPacketManager, set the delayed ack time to 1ms for Initial and Handshake packet number spaces when using v99, and use peer_delayed_ack_time instead of local_delayed_ack_time when with the MAD1 connection option.
2019-08-02 dschinazi Send correct stateless reset token when using TLS
2019-08-02 ianswett Use peer_max_ack_delay_ not local_max_ack_delay_ when using the MAD1 QUIC connection option.  Both fields are set to identical values, so this is a no-op.

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

Change-Id: I85ede16ccff071c9cdf38fa8c51e50a95c786b21
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1739406
Auto-Submit: Bence Béky <bnc@chromium.org>
Commit-Queue: Ryan Hamilton <rch@chromium.org>
Reviewed-by: Ryan Hamilton <rch@chromium.org>
Cr-Commit-Position: refs/heads/master@{#684384}

DEPS

@@ -284,7 +284,7 @@ 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': 'c691071e933e05b53f65d97374de4ab91fed4c20',
+  'quiche_revision': '7be3caccf89cbc7bda2cc92037c6758739c2f835',
   # 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

@@ -357,3 +357,9 @@ QUIC_FLAG(
     bool,
     FLAGS_quic_reloadable_flag_quic_add_upper_limit_of_buffered_control_frames,
     false)
+
+// If true, static streams should never be closed before QuicSession
+// destruction.
+QUIC_FLAG(bool,
+          FLAGS_quic_reloadable_flag_quic_active_streams_never_negative,
+          false)