Migrate Local Discovery from net::IPAddressNumber to net::IPAddress.

chrome/browser/extensions/api/mdns/dns_sd_device_lister.cc

Index: chrome/browser/extensions/api/mdns/dns_sd_device_lister.cc
diff --git a/chrome/browser/extensions/api/mdns/dns_sd_device_lister.cc b/chrome/browser/extensions/api/mdns/dns_sd_device_lister.cc
index c6c0b9c273368f75154648bdb26af10d5e0c015b..139e278019e59a4cf2df424bb3970ec4a9bf04cb 100644
--- a/chrome/browser/extensions/api/mdns/dns_sd_device_lister.cc
+++ b/chrome/browser/extensions/api/mdns/dns_sd_device_lister.cc
@@ -5,7 +5,7 @@
 #include "chrome/browser/extensions/api/mdns/dns_sd_device_lister.h"
 
 #include "chrome/common/extensions/api/mdns.h"
-#include "net/base/ip_address_number.h"
+#include "net/base/ip_address.h"
 
 using local_discovery::ServiceDescription;
 
@@ -17,9 +17,9 @@ void FillServiceInfo(const ServiceDescription& service_description,
                      DnsSdService* service) {
   service->service_name = service_description.service_name;
   service->service_host_port = service_description.address.ToString();
-  if (!service_description.ip_address.empty()) {
-    service->ip_address = net::IPAddressToString(
-        service_description.ip_address);
+  if (service_description.ip_address.IsIPv4() ||

[eroman, 2015/12/21 20:47:33]

perhaps we should add a IPAddress::IsValid() method, which returns true if it is
IPv4 or IPv6

[martijnc, 2016/01/27 22:50:52]

Done.

+      service_description.ip_address.IsIPv6()) {
+    service->ip_address = service_description.ip_address.ToString();
   }
   service->service_data = service_description.metadata;