Add wifi AP info to system profile metrics

net/base/network_change_notifier.h

Index: net/base/network_change_notifier.h
diff --git a/net/base/network_change_notifier.h b/net/base/network_change_notifier.h
index b29426e3dc825a3014e228974d4c5bb61ee57a8f..ca70ffb0dc3d47e2f117b59ef10a929b0142708b 100644
--- a/net/base/network_change_notifier.h
+++ b/net/base/network_change_notifier.h
@@ -47,6 +47,29 @@ class NET_EXPORT NetworkChangeNotifier {
     CONNECTION_LAST = CONNECTION_BLUETOOTH
   };
 
+  // Wifi access point security mode definitions.
+  enum WifiSecurityMode {
+    WIFI_SECURITY_UNKNOWN = 0,
+    WIFI_SECURITY_WPA = 1,
+    WIFI_SECURITY_WEP = 2,
+    WIFI_SECURITY_RSN = 3,
+    WIFI_SECURITY_802_1X = 4,
+    WIFI_SECURITY_PSK = 5,
+    WIFI_SECURITY_NONE
+  };
+
+  // Information of the currently connected wifi access point.
+  struct NET_EXPORT WifiAccessPointInfo {
+    WifiAccessPointInfo();
+    ~WifiAccessPointInfo();
+    WifiSecurityMode security;
+    std::string bssid;
+    std::string model_number;
+    std::string model_name;
+    std::string device_name;
+    std::string oui_list;
+  };
+
   class NET_EXPORT IPAddressObserver {
    public:
     // Will be called when the IP address of the primary interface changes.
@@ -135,6 +158,11 @@ class NET_EXPORT NetworkChangeNotifier {
   // cheap as this could be called (repeatedly) from the network thread.
   virtual ConnectionType GetCurrentConnectionType() const = 0;
 
+  // Fill in the wifi access point info if device is currently connected to a
+  // wifi access point. Return true if device is connected to a wifi access
+  // point, false otherwise.
+  virtual bool GetCurrentWifiAccessPointInfo(WifiAccessPointInfo* info);
+
   // Replaces the default class factory instance of NetworkChangeNotifier class.
   // The method will take over the ownership of |factory| object.
   static void SetFactory(NetworkChangeNotifierFactory* factory);
@@ -159,6 +187,9 @@ class NET_EXPORT NetworkChangeNotifier {
   // the internet, the connection type is CONNECTION_WIFI.
   static ConnectionType GetConnectionType();
 
+  // Retreive the wifi access point info.
+  static bool GetWifiAccessPointInfo(WifiAccessPointInfo* info);
+
   // Retrieve the last read DnsConfig. This could be expensive if the system has
   // a large HOSTS file.
   static void GetDnsConfig(DnsConfig* config);