Remove an incorrect DCHECK() when calling HostResolverImpl::Resolve() with an IP literal and HOST_RE

net/dns/host_resolver_impl.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/dns/host_resolver_impl.h"
 
 #include <utility>
 
 #if defined(OS_WIN)
 #include <Winsock2.h>
@@ skipping 2074 matching lines @@
 bool HostResolverImpl::ResolveAsIP(const Key& key,
                                    const RequestInfo& info,
                                    const IPAddressNumber* ip_number,
                                    int* net_error,
                                    AddressList* addresses) {
   DCHECK(addresses);
   DCHECK(net_error);
   if (ip_number == nullptr)
     return false;
 
-  DCHECK_EQ(key.host_resolver_flags &
-      ~(HOST_RESOLVER_CANONNAME | HOST_RESOLVER_LOOPBACK_ONLY |
-        HOST_RESOLVER_DEFAULT_FAMILY_SET_DUE_TO_NO_IPV6),
-            0) << " Unhandled flag";
-
   *net_error = OK;
   AddressFamily family = GetAddressFamily(*ip_number);
   if (key.address_family != ADDRESS_FAMILY_UNSPECIFIED &&
       key.address_family != family) {
     // Don't return IPv6 addresses for IPv4 queries, and vice versa.
     *net_error = ERR_NAME_NOT_RESOLVED;
   } else {
     *addresses = AddressList::CreateFromIPAddress(*ip_number, info.port());
     if (key.host_resolver_flags & HOST_RESOLVER_CANONNAME)
       addresses->SetDefaultCanonicalName();
@@ skipping 348 matching lines @@
     dns_client_->SetConfig(dns_config);
     num_dns_failures_ = 0;
     if (dns_client_->GetConfig())
       UMA_HISTOGRAM_BOOLEAN("AsyncDNS.DnsClientEnabled", true);
   }
 
   AbortDnsTasks();
 }
 
 }  // namespace net