Add SSID getter to WiFiService

components/wifi/wifi_service_mac.mm

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/wifi/wifi_service.h"
 
 #import <netinet/in.h>
 #import <CoreWLAN/CoreWLAN.h>
 #import <SystemConfiguration/SystemConfiguration.h>
 
@@ skipping 58 matching lines @@
                         std::string* key_data,
                         std::string* error) override;
 
   void SetEventObservers(
       scoped_refptr<base::MessageLoopProxy> message_loop_proxy,
       const NetworkGuidListCallback& networks_changed_observer,
       const NetworkGuidListCallback& network_list_changed_observer) override;
 
   void RequestConnectedNetworkUpdate() override;
 
+  void GetConnectedNetworkSSID(std::string* ssid, std::string* error) override;
+
  private:
   // Checks |ns_error| and if is not |nil|, then stores |error_name|
   // into |error|.
   bool CheckError(NSError* ns_error,
                   const char* error_name,
                   std::string* error) const;
 
   // Gets |ssid| from unique |network_guid|.
   NSString* SSIDFromGUID(const std::string& network_guid) const {
     return base::SysUTF8ToNSString(network_guid);
@@ skipping 320 matching lines @@
                     object:nil
                      queue:nil
                 usingBlock:ns_observer];
   }
 }
 
 void WiFiServiceMac::RequestConnectedNetworkUpdate() {
   OnWlanObserverNotification();
 }
 
+void WiFiServiceMac::GetConnectedNetworkSSID(std::string* ssid,
+                                             std::string* error) {
+  *ssid = base::SysNSStringToUTF8([interface_ ssid]);
+  *error = "";
+}
+
 std::string WiFiServiceMac::GetNetworkConnectionState(
     const std::string& network_guid) const {
   if (network_guid != GUIDFromSSID([interface_ ssid]))
     return onc::connection_state::kNotConnected;
 
   // Check whether WiFi network is reachable.
   struct sockaddr_in local_wifi_address;
   bzero(&local_wifi_address, sizeof(local_wifi_address));
   local_wifi_address.sin_len = sizeof(local_wifi_address);
   local_wifi_address.sin_family = AF_INET;
@@ skipping 216 matching lines @@
   NetworkGuidList changed_networks(1, network_guid);
   message_loop_proxy_->PostTask(
       FROM_HERE,
       base::Bind(networks_changed_observer_, changed_networks));
 }
 
 // static
 WiFiService* WiFiService::Create() { return new WiFiServiceMac(); }
 
 }  // namespace wifi