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 4671e4915b0e0de60ca70e031801aa2d3139ae6f..505d7926bc7243d371a4014626d8d9bc00fc7c94 100644
--- a/net/base/network_change_notifier.h
+++ b/net/base/network_change_notifier.h
@@ -46,6 +46,20 @@ class NET_EXPORT NetworkChangeNotifier {
     CONNECTION_LAST = CONNECTION_NONE
   };
 
+  // Information of the currently connected wifi AP.
+  struct NET_EXPORT WifiApInfo {
+    WifiApInfo();
+    ~WifiApInfo();

[stevenjb, 2014/06/12 20:54:40]

empty constructors (and destructors for no-virtual classes or structs) are
unnecessary.

[zqiu1, 2014/07/07 23:37:33]

Done.

+
+    std::string bssid;
+    std::string security;
+    std::string model_number;
+    std::string model_name;
+    std::string device_name;
+    std::string manufacturer;
+    std::string oui_list;
+  };
+
   class NET_EXPORT IPAddressObserver {
    public:
     // Will be called when the IP address of the primary interface changes.
@@ -134,6 +148,10 @@ class NET_EXPORT NetworkChangeNotifier {
   // cheap as this could be called (repeatedly) from the network thread.
   virtual ConnectionType GetCurrentConnectionType() const = 0;
 
+  // Fill in the wifi AP info if device is currently connected to a wifi AP,
+  // Return true if device is connected to a wifi AP, false otherwise.
+  virtual bool GetCurrentWifiApInfo(WifiApInfo &info) { return false; }

[stevenjb, 2014/06/12 20:54:40]

virtual methods should never be inlined (only execption is an empty destructor
for a pure interface class).

[zqiu1, 2014/07/07 23:37:33]

Done.

+
   // Replaces the default class factory instance of NetworkChangeNotifier class.
   // The method will take over the ownership of |factory| object.
   static void SetFactory(NetworkChangeNotifierFactory* factory);
@@ -158,6 +176,9 @@ class NET_EXPORT NetworkChangeNotifier {
   // the internet, the connection type is CONNECTION_WIFI.
   static ConnectionType GetConnectionType();
 
+  // Retreive the wifi AP info.
+  static bool GetWifiApInfo(WifiApInfo &info);
+
   // Retrieve the last read DnsConfig. This could be expensive if the system has
   // a large HOSTS file.
   static void GetDnsConfig(DnsConfig* config);