RuleBasedHostResolverProc 246 net/dns/mock_host_resolver.cc RuleBasedHostResolverProc::RuleBasedHostResolverProc(HostResolverProc* previous) RuleBasedHostResolverProc 395 net/dns/mock_host_resolver.cc RuleBasedHostResolverProc::~RuleBasedHostResolverProc() {