[net (linux)] Don't send OnIPAddressChanged when the AddressMap is first populated.

net/base/network_change_notifier_linux.cc

Index: net/base/network_change_notifier_linux.cc
diff --git a/net/base/network_change_notifier_linux.cc b/net/base/network_change_notifier_linux.cc
index 8bc6cc83826e236a5092fca5df7629eb7b707a70..a3753a96c1e27df910e751ae88a95d21ddbedf3f 100644
--- a/net/base/network_change_notifier_linux.cc
+++ b/net/base/network_change_notifier_linux.cc
@@ -285,10 +285,10 @@ NetworkChangeNotifierLinux::Thread::~Thread() {
 
 void NetworkChangeNotifierLinux::Thread::Init() {
   network_manager_api_.Init();
+  address_tracker_.Init();
   dns_config_service_ = DnsConfigService::CreateSystemService();
   dns_config_service_->WatchConfig(
       base::Bind(&NetworkChangeNotifier::SetDnsConfig));
-  address_tracker_.Init();
 }
 
 void NetworkChangeNotifierLinux::Thread::CleanUp() {