Mac OS X-specific implementation of Networking Private API.

components/wifi/wifi_service_win.cc

Index: components/wifi/wifi_service_win.cc
diff --git a/components/wifi/wifi_service_win.cc b/components/wifi/wifi_service_win.cc
index 71342a2745d02e8a445eab97b6ffe157156f5507..1f9e1fb83b6e4c293724d26df4785422f4c74d45 100644
--- a/components/wifi/wifi_service_win.cc
+++ b/components/wifi/wifi_service_win.cc
@@ -1077,13 +1077,11 @@ void WiFiServiceImpl::NetworkPropertiesFromAvailableNetwork(
                     bss_entry.dot11Ssid.uSSIDLength)) {
       properties->frequency = GetNormalizedFrequency(
           bss_entry.ulChCenterFrequency / 1000);
-      properties->frequency_list.push_back(properties->frequency);
+      properties->frequency_set.insert(properties->frequency);
       properties->bssid = NetworkProperties::MacAddressAsString(
           bss_entry.dot11Bssid);
     }
   }
-  properties->frequency_list.sort();
-  properties->frequency_list.unique();
   properties->security =
       SecurityFromDot11AuthAlg(wlan.dot11DefaultAuthAlgorithm);
   properties->signal_strength = wlan.wlanSignalQuality;