Roll src/net/third_party/quiche/src/ 3f0f67930..075a3dbe8 (8 commits)

https://quiche.googlesource.com/quiche.git/+log/3f0f679307af..075a3dbe833c

$ git log 3f0f67930..075a3dbe8 --date=short --no-merges --format='%ad %ae %s'
2019-04-19 fkastenholz Fix test so it compiles in chromium
2019-04-19 fayang gfe-relnote: In QUIC, terminate Google QUIC connections (<= v43) similar as IETF QUIC connection. Protected by gfe2_reloadable_flag_quic_terminate_gquic_connection_as_ietf.
2019-04-18 renjietang Change HTTP/3 frame type from 1 byte integer to variable length integer, and allow partial delivery.
2019-04-18 quiche-dev Inject a random number generator into QuartcEndpoint and SendAlgorithms.
2019-04-18 dschinazi Do not ACK when encryption keys are missing
2019-04-18 danzh gfe-relnote: n/a(test only code) switch from unordered_set to multimap.
2019-04-18 danzh gfe-relnote: n/a(code clean up) Inline WallTimeNowInUsec().
2019-04-18 danzh gfe-relnote: n/a(code clean up) make epoll_server_test.cc platform independent.

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

R=rch@chromium.org

Change-Id: Ia235dd52984c098af6b754bc4790b5550d0be7e1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1575680Reviewed-by: Zhongyi Shi <zhongyi@chromium.org>
Commit-Queue: Frank Kastenholz <fkastenholz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#652551}

DEPS

@@ -272,7 +272,7 @@ 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': '3f0f679307afdc92161f6a9509982f1c8e86a54d',
+  'quiche_revision': '075a3dbe833c0794976c9b9218adf44bcc3f6fb3',
   # 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

@@ -322,3 +322,8 @@ QUIC_FLAG(bool,
 
 // If true, non-ASCII QUIC tags are printed as hex instead of integers."
 QUIC_FLAG(bool, FLAGS_quic_reloadable_flag_quic_print_tag_hex, false)
+
+// If true, terminate Google QUIC connections similary as IETF QUIC.
+QUIC_FLAG(bool,
+          FLAGS_quic_reloadable_flag_quic_terminate_gquic_connection_as_ietf,
+          false)