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

chrome/browser/devtools/device/cast_device_provider.cc

Index: chrome/browser/devtools/device/cast_device_provider.cc
diff --git a/chrome/browser/devtools/device/cast_device_provider.cc b/chrome/browser/devtools/device/cast_device_provider.cc
index 1e897fe187f0576b9e0f287f71c639830be9ac8a..a029ccdf1cc3a576a86c2bb2b449dbed412da4d7 100644
--- a/chrome/browser/devtools/device/cast_device_provider.cc
+++ b/chrome/browser/devtools/device/cast_device_provider.cc
@@ -13,7 +13,7 @@
 #include "base/strings/string_split.h"
 #include "base/thread_task_runner_handle.h"
 #include "net/base/host_port_pair.h"
-#include "net/base/ip_address_number.h"
+#include "net/base/ip_address.h"
 
 using local_discovery::ServiceDiscoverySharedClient;
 
@@ -171,14 +171,13 @@ void CastDeviceProvider::OnDeviceChanged(
           << service_description.service_name;
   if (service_description.service_type() != kCastServiceType)
     return;
-  net::IPAddressNumber ip_address = service_description.ip_address;
-  if (ip_address.size() != net::kIPv4AddressSize &&
-      ip_address.size() != net::kIPv6AddressSize) {
+  net::IPAddress ip_address = service_description.ip_address;
+  if (!ip_address.IsIPv4() && !ip_address.IsIPv6()) {

[palmer, 2015/12/22 01:09:10]

An IsValid (or is_valid) member function might make sense. (Up to you.)

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

Done.

     // An invalid IP address is not queryable.
     return;
   }
   std::string name = service_description.service_name;
-  std::string host = net::IPAddressToString(ip_address);
+  std::string host = ip_address.ToString();
   service_hostname_map_[name] = host;
   device_info_map_[host] = ServiceDescriptionToDeviceInfo(service_description);
 }