API for connection type (Ethernet/WIFI/WWAN ...) in NetworkChangeNotifier.

net/base/network_change_notifier_mac.h

Index: net/base/network_change_notifier_mac.h
diff --git a/net/base/network_change_notifier_mac.h b/net/base/network_change_notifier_mac.h
index ec2bb1fed50e97c42be5bf424f01e8e9117f9546..320cff9f5c0116ade3ce6586da203594e7db3d70 100644
--- a/net/base/network_change_notifier_mac.h
+++ b/net/base/network_change_notifier_mac.h
@@ -25,14 +25,7 @@ class NetworkChangeNotifierMac: public NetworkChangeNotifier {
   virtual ~NetworkChangeNotifierMac();
 
   // NetworkChangeNotifier implementation:
-  virtual bool IsCurrentlyOffline() const OVERRIDE;
-
- private:
-  enum OnlineState {
-    UNINITIALIZED = -1,
-    OFFLINE = 0,
-    ONLINE = 1
-  };
+  virtual ConnectionType GetCurrentConnectionType() const OVERRIDE;
 
   // Forwarder just exists to keep the NetworkConfigWatcherMac API out of
   // NetworkChangeNotifierMac's public API.
@@ -74,8 +67,9 @@ class NetworkChangeNotifierMac: public NetworkChangeNotifier {
 
   // These must be constructed before config_watcher_ to ensure
   // the lock is in a valid state when Forwarder::Init is called.
-  OnlineState online_state_;
-  mutable base::Lock online_state_lock_;
+  ConnectionType connection_type_;
+  bool connection_type_initialized_;
+  mutable base::Lock connection_type_lock_;
   mutable base::ConditionVariable initial_state_cv_;
   base::mac::ScopedCFTypeRef<SCNetworkReachabilityRef> reachability_;
   base::mac::ScopedCFTypeRef<CFRunLoopRef> run_loop_;