chromium/components/no_state_prefetch/browser/README.md

This directory contains NoStatePrefetch implementation.

Currently NoStatePrefetch can be triggered by `<link rel="prerender">` and
Speculation Rules with `prefetch_with_subresources`. These features call
`StartPrefetchingFromLinkRelPrerender()` and `AddSameOriginSpeculation()` on
`NoStatePrefetchManager` respectively to start prefetching.