Proto commits in google/quic-trace

These 7 commits are when the Protocol Buffers files have changed:

Commit:0c76936
Author:Victor Vasiliev

Rename "lib/" to "quic_trace/" C++ built with Bazel uses repository-relative paths, meaning that "lib/quic_trace.pb.h" is ambiguous.

The documentation is generated from this commit.

Commit:ddb0e6e
Author:Marten Seemann
Committer:Marten Seemann

add support for CRYPTO frames

Commit:04706de
Author:Cherie Shi

Add CloseType to quic_trace

Commit:b947bc0
Author:Ryan Hamilton

In QUIC, add unused HANDSHAKE encryption level.

Commit:3549681
Author:Victor Vasiliev
Committer:Victor Vasiliev

Add fields to mark TLPs and RTOs

Commit:fe1b258
Author:Victor Vasiliev
Committer:GitHub

Add APPLICATION_LIMITED and EXTERNAL_PARAMETER events Recording those events is necessary to explain behavior of congestion control algorithm which otherwise would seem unexpected.

Commit:627c2b6
Author:Victor Vasiliev

Initial revision