tree 6a40ea6a0e84ffed0fc626f7bb348b75898a85e4
parent aeeacbae70087eac02032d9d8e9ca3f0496abb3f
author QUICHE team <quiche-dev@google.com> 1782480567 -0700
committer Copybara-Service <copybara-worker@google.com> 1782480696 -0700

Remove unnecessary string allocations from structured headers

1. ReadKey can return a view into the input string, allowing creation
   of owned std::string keys to be deferred until after other
   validation has occurred.
2. Numbers can be parsed from a view into the input string, as
   absl::SimpleAtod and absl::SimpleAtoi accept absl::string_view.
3. ReadString can append to the output std::string using a view into
   the input string.
4. The serializer can return the final std::string by moving out of the
   std::ostringstream instead of copying.

PiperOrigin-RevId: 938557918