tree 4df2d4468367b711b277f5b2c40b1c7330502035
parent faaae4e949a6452f7009af674c191368d79c966a
author diannahu <diannahu@google.com> 1683819346 -0700
committer Copybara-Service <copybara-worker@google.com> 1683819394 -0700

Tweak BalsaHeadersSequence to prepare for JetstreamSession integration.

This CL makes two changes to BalsaHeadersSequence:
  - Adds BalsaHeadersSequence::PeekNext(), similar to Next() does not consume
    the headers.
  - Removes const qualifiers on the BalsaHeaders. It seems like
    JetstreamSession wants to be able to modify response headers generally.
    Interim response headers should likely be aligned.

PiperOrigin-RevId: 531211664