Landing Recent QUIC Changes.
Ensure the QuicConnection's writer is not write blocked before trying to
write another packet.
Fix for Chrome crash bug 409191.
Merge internal change:
74635422
BUG=409191
Nest a QUIC SerializedPacket inside a QUIC QueuedPacket.
Merge internal change:
74239145
https://codereview.chromium.org/
509203003/
Remove PacketType from QUIC because the QUEUED type is not used and the
other types can be reduced to a bool.
Merge internal change:
74148481
https://codereview.chromium.org/
515003003/
Don't send a QUIC SCUP message until after handshake confirmed.
A server config update was occasionally being sent before the crypto
handshake was complete, causing the client to close the connection.
Merge internal change:
74132773
https://codereview.chromium.org/
516713002/
Change TransmissionInfo's all_transmissions SequenceNumberSet* to
default to NULL, and only be present if there are multiple transmissions.
Estimated to save ~2% of CPU.
Merge internal change:
74076012
https://codereview.chromium.org/
509073004/
Log the quic version for internal server tracing.
Not used in production.
Merge internal change:
74069715
https://codereview.chromium.org/
514043002/
Optimize QuicUnackedPacketMap by changing from a LinkedHashMap to a
deque.
Estimated to save ~3% of CPU based on pprof profiling of 100 large gets
on tools/quic/end_to_end_test.cc.
Merge internal change:
74054196
https://codereview.chromium.org/
514033002/
Unit test for empty packet closes QUIC connection bug.
Merge internal change:
74041239
https://codereview.chromium.org/
495423011/
Log the QUIC transmission type in QUIC internal server trace visitor.
Not used in production.
Merge internal change:
73895739
https://codereview.chromium.org/
514023002/
Not used in production. Log whether a QUIC packet sent was a crypto
packet or not for internal server side tracing.
Merge internal change:
73894063
https://codereview.chromium.org/
515003002/
Fix a QUIC bug in which PING frames were not being ACK'd.
Merge internal change:
73837644
https://codereview.chromium.org/
512933005/
R=rch@chromium.org
Committed: https://chromium.googlesource.com/chromium/src/+/
27f3f1894f09a96112df50fddd32895b4677f949
Review URL: https://codereview.chromium.org/
515303003
Cr-Commit-Position: refs/heads/master@{#293030}