tree 40d1d8d2972a7cdaf975f0bb3b81c5d8a31600ee
parent ac02283dd3add773b963643f644dd18730792322
author wub <wub@google.com> 1607536220 -0800
committer Copybara-Service <copybara-worker@google.com> 1607536270 -0800

Record the number of ping frames sent in QuicConnectionStats.

This is needed by the Net.QuicSession.NumPingsSent histogram in Chromium: https://source.chromium.org/chromium/chromium/src/+/master:net/quic/quic_chromium_client_session.cc;l=1868?q=num_pings_sent_&ss=chromium

Currently, that histogram uses the value of QuicChromiumClientSession::num_pings_sent_, which is incremented in QuicChromiumClientSession::SendPing, which needs to be deleted after cl/346323537.

PiperOrigin-RevId: 346573315
Change-Id: Ib38b2884ebba1911ea097c3296b4dc003300a6c7