If enabled, Chrome attempts to speed up your web browsing experience by
pre-resolving DNS entries, preemptively opening TCP and SSL connections to
servers, and preloading pages. Disabling this preference overrides site
owners' ability to speculatively load content (such as prefetching or
prerendering via the Speculation Rules
API).
It does not affect webpage-initiated preconnects or DNS prefetches. This
preference's value is a boolean, defaulting to true.
Allow users to specify the media performance/privacy tradeoffs which
impacts how WebRTC traffic will be routed and how much local address
information is exposed. This preference's value is of type
IPHandlingPolicy, defaulting to default.