diff options
| -rw-r--r-- | net/base/host_resolver_impl.cc | 39 |
1 files changed, 0 insertions, 39 deletions
diff --git a/net/base/host_resolver_impl.cc b/net/base/host_resolver_impl.cc index 4b6bb3ad..c54bf9da 100644 --- a/net/base/host_resolver_impl.cc +++ b/net/base/host_resolver_impl.cc @@ -1725,45 +1725,6 @@ int HostResolverImpl::Resolve(const RequestInfo& info, JobMap::iterator jobit = jobs_.find(key); Job* job; if (jobit == jobs_.end()) { - // If we couldn't find the desired address family, check to see if the - // other family is in the cache or another job, which indicates waste, - // and we should fix crbug.com/139811. - { - bool ipv4 = key.address_family == ADDRESS_FAMILY_IPV4; - Key other_family_key = key; - other_family_key.address_family = ipv4 ? - ADDRESS_FAMILY_UNSPECIFIED : ADDRESS_FAMILY_IPV4; - bool found_other_family_cache = false; - bool found_other_family_job = false; - if (default_address_family_ == ADDRESS_FAMILY_UNSPECIFIED) { - found_other_family_cache = cache_.get() && - cache_->Lookup(other_family_key, base::TimeTicks::Now()) != NULL; - if (!found_other_family_cache) - found_other_family_job = jobs_.count(other_family_key) > 0; - } - enum { // Used in UMA_HISTOGRAM_ENUMERATION. - AF_WASTE_IPV4_ONLY, - AF_WASTE_CACHE_IPV4, - AF_WASTE_CACHE_UNSPEC, - AF_WASTE_JOB_IPV4, - AF_WASTE_JOB_UNSPEC, - AF_WASTE_NONE_IPV4, - AF_WASTE_NONE_UNSPEC, - AF_WASTE_MAX, // Bounding value. - } category = AF_WASTE_MAX; - if (default_address_family_ != ADDRESS_FAMILY_UNSPECIFIED) { - category = AF_WASTE_IPV4_ONLY; - } else if (found_other_family_cache) { - category = ipv4 ? AF_WASTE_CACHE_IPV4 : AF_WASTE_CACHE_UNSPEC; - } else if (found_other_family_job) { - category = ipv4 ? AF_WASTE_JOB_IPV4 : AF_WASTE_JOB_UNSPEC; - } else { - category = ipv4 ? AF_WASTE_NONE_IPV4 : AF_WASTE_NONE_UNSPEC; - } - UMA_HISTOGRAM_ENUMERATION("DNS.ResolveUnspecWaste", category, - AF_WASTE_MAX); - } - job = new Job(weak_ptr_factory_.GetWeakPtr(), key, info.priority(), request_net_log); job->Schedule(); |