[cros/net] Add DnsConfigService to NetworkChangeNotifierChromeos.

chrome/browser/chromeos/net/network_change_notifier_chromeos.h

Index: chrome/browser/chromeos/net/network_change_notifier_chromeos.h
diff --git a/chrome/browser/chromeos/net/network_change_notifier_chromeos.h b/chrome/browser/chromeos/net/network_change_notifier_chromeos.h
index a6324560f466977f8de09aa5a14489858e368fb9..95803aca721a8f75035c29580df8bd08f6fe0ca1 100644
--- a/chrome/browser/chromeos/net/network_change_notifier_chromeos.h
+++ b/chrome/browser/chromeos/net/network_change_notifier_chromeos.h
@@ -36,6 +36,8 @@ class NetworkChangeNotifierChromeos
  private:
   friend class OnlineStatusReportThreadTask;
 
+  class DnsConfigServiceChromeos;
+
   // PowerManagerClient::Observer overrides.
   virtual void PowerChanged(const PowerSupplyStatus& status) OVERRIDE;
 
@@ -84,6 +86,8 @@ class NetworkChangeNotifierChromeos
   // Current active network's IP address.
   std::string ip_address_;
 
+  scoped_ptr<DnsConfigServiceChromeos> dns_config_service_;
+
   base::WeakPtrFactory<NetworkChangeNotifierChromeos> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkChangeNotifierChromeos);