tree c318e15b00304627bd5c739a74e6dc8d36664f34
parent 76863f97e957032cb5ebcf893a1326d99b8bd68b
author wub <wub@google.com> 1717783192 -0700
committer Copybara-Service <copybara-worker@google.com> 1717783268 -0700

Split `QuicConnectionTracer` into two interfaces:
- A `QuicPlatformConnectionContext` interface that get notified when a `QuicConnection` becomes active or inactive.
- A new smaller `QuicConnectionTracer` that only contains PrintXXX methods.

This allows subclasses of `QuicPlatformConnectionContext` to save/restore contexts unrelated to tracing, e.g. census information.

PiperOrigin-RevId: 641299648