Land Recent QUIC Changes.

Land Recent QUIC Changes.

Add helper methods to QUIC test client and peers that allow access to
information needed to test 0-Rtt behavior when talking to cluster-wide
strike registers.

QUIC testing infrastructure.

Merge internal change: 58551796
https://codereview.chromium.org/124183003/

Release QuicCryptoServerConfig::strike_register_client_lock_ before
doing calls to VerifyNonceIsValidAndUnique in order to minimize the
amount of work that happens while strike_register_client_lock_ is
locked.  This is important because VerifyNonceIsValidAndUnique may
invoke the done callback before returning, which may take arbitrary
time or create a lock cycle if invoked while the lock is held.

Relax strike_register_client_ locking requirements.

Merge internal change: 58551166
https://codereview.chromium.org/110753005/

Rename GetIncomingReliableStream to GetIncomingDataStream.

Merge internal change: 58538145
https://codereview.chromium.org/111283004/

Suppress noisy messages in QuicTimeWaitListManagerTest.

Merge internal change: 58422536
https://codereview.chromium.org/123623002/

Implement a TCP tail loss probe which will fire twice before the RTO
fires.  The tail loss probe gets re-armed every time a packet is
sent.

Merge internal change: 58420170
https://codereview.chromium.org/123523004/

Move all the packet parsing logic into QuicDispatcher from the
QuicServer / QuicDispatcher / QuicTimeWaitListManager.

Merge internal change: 58413216
https://codereview.chromium.org/123303003/

R=rch@chromium.org

Review URL: https://codereview.chromium.org/124003005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@242987 0039d316-1c4b-4281-b951-d872f2087c98