Mac OS X-specific implementation of Networking Private API.

components/wifi.gypi

Index: components/wifi.gypi
diff --git a/components/wifi.gypi b/components/wifi.gypi
index 4cfb12abb61811f255ff63b87dbbd368ce9312db..3090bd2dc6259e38534f660e02cdf1ff817e0c45 100644
--- a/components/wifi.gypi
+++ b/components/wifi.gypi
@@ -23,6 +23,7 @@
         'wifi/wifi_service.cc',
         'wifi/wifi_service.h',
         'wifi/fake_wifi_service.cc',
+        'wifi/wifi_service_mac.mm',
         'wifi/wifi_service_win.cc',
       ],
       'conditions': [
@@ -33,6 +34,14 @@
             ],
           },
         }],
+        ['OS == "mac"', {
+          'link_settings': {
+            'libraries': [
+              '$(SDKROOT)/System/Library/Frameworks/CoreWLAN.framework',
+              '$(SDKROOT)/System/Library/Frameworks/SystemConfiguration.framework',
+            ]
+          },
+        }],
       ],
     },
     {