This allows this type to meet the requirements of e.g.
std::ranges::range, which is necessary for it to work with the
std::span range constructor, or the "non-legacy" constructor for
Chromium's base::span.
Fixes a number of IWYU problems along the way, to silence checks.
Bug: chromium:364987728
PiperOrigin-RevId: 689841844
This CL should be a no-op.
Provide better access to the service ID during bandwidth upgrade handling. Notably, 1) have the endpoint channel store its associated service ID, and 2) send the service ID on a connect/disconnect.
The service ID identifies the application, for example, "NearbySharing". In future CLs, we will use the service IDs to better handle bandwidth-upgrade bookkeeping when multiple services are running simultaneously. Specifically, we will better handle reverting a bandwidth-upgrade medium without interfering with other services.
PiperOrigin-RevId: 442019209