Landing Recent QUIC changes until 8/4/2015 20:30 UTC.

Disable FLAGS_quic_require_handshake_confirmation for ZeroRTT test.

relnote: Adding FLAGS_require_handshake_confirmation to emergency-disable
QUIC 0-rtt

Adding a reloadable flag to allow quickly disabling QUIC's 0-rtt
handshake as an interim measure (0-rtt DoS protection) to allow
StrikeServer turndown before full DoSServer integration.  See b/20122788

Merge internal change: 99600488
https://codereview.chromium.org/1272153006/

relnote: Deprecate FLAGS_quic_send_fec_packet_only_on_fec_alarm.

Merge internal change: 99599597
https://codereview.chromium.org/1279433004/

relnote: Limit the number of burst tokens in QUIC's pacing sender to the
min of 10 and the current CWND in packets.

Protected by FLAGS_quic_limit_pacing_burst.

Should decrease retransmit rate for low CWND flows.

Merge internal change: 99597412
https://codereview.chromium.org/1276983003/

Preparation for changing SpdyHeaderBlock to be ordered. This just reduces
the number of files in upcoming CL by 2. No behavior change as these are
currently entries into a map, and the key:value pairs haven't changed.
However after changing to ordered SpdyHeaderBlock, the pseudo-header
order of authority,path,scheme,method is what ends up getting written,
and thus I'm changing the order here in advance.

relnote: n/a (test only)

Merge internal change: 99394725
https://codereview.chromium.org/1281463002/

relnote:  Close QUIC connections due to too many open streams earlier in
processing.  No significant behavior change.  Flag-protected by enabled
FLAGS_exact_stream_id_delta.

Replace the "maximum delta in stream ID" test on a newly-created stream
with an exact test for the max number of open streams.  Change the error
in this case from QUIC_INVALID_STREAM_ID to QUIC_TOO_MANY_OPEN_STREAMS.

FIXED=22477228

Merge internal change: 99369742
https://codereview.chromium.org/1277753002/

relnote: Minor format changes to keep the code similar to internal source.

Merge internal change: 99250353
https://codereview.chromium.org/1274003002/

relnote: Change the QuicStreamSequencer to call OnDataAvailable instead
of OnFinRead when the fin is consumed.

Make ReliableQuicStream::OnFinRead() non-virtual and remove overrides in
subclasses.

Merge internal change: 99214926
https://codereview.chromium.org/1261273003/

R=rch@chromium.org

Review URL: https://codereview.chromium.org/1277723003

Cr-Commit-Position: refs/heads/master@{#342349}

1 files changed, 8 insertions, 6 deletions

diff --git a/net/tools/quic/quic_server_session.cc b/net/tools/quic/quic_server_session.cc
index 92aacfd..7fa5804 100644
--- a/net/tools/quic/quic_server_session.cc
+++ b/net/tools/quic/quic_server_session.cc
@@ -195,12 +195,14 @@ bool QuicServerSession::ShouldCreateIncomingDynamicStream(QuicStreamId id) {
     connection()->SendConnectionClose(QUIC_INVALID_STREAM_ID);
     return false;
   }
-  if (GetNumOpenStreams() >= get_max_open_streams()) {
-    DVLOG(1) << "Failed to create a new incoming stream with id:" << id
-             << " Already " << GetNumOpenStreams() << " streams open (max "
-             << get_max_open_streams() << ").";
-    connection()->SendConnectionClose(QUIC_TOO_MANY_OPEN_STREAMS);
-    return false;
+  if (!FLAGS_exact_stream_id_delta) {
+    if (GetNumOpenStreams() >= get_max_open_streams()) {
+      DVLOG(1) << "Failed to create a new incoming stream with id:" << id
+               << " Already " << GetNumOpenStreams() << " streams open (max "
+               << get_max_open_streams() << ").";
+      connection()->SendConnectionClose(QUIC_TOO_MANY_OPEN_STREAMS);
+      return false;
+    }
   }
   return true;
 }