GSoC chromium: IP address synthesis for an IPv6 only network to connect to an IPv4 address literal.

TLDR; When a client is in an IPv6 only environment it utilises the NAT64 and DNS64 in the network to connect to IPv4 only servers. However, when chrome tries to connect to an IPv4 literal (such as when an IPv4 address is directly written in the search bar) it doesn't use the DNS64 and fails to conn…