proposed interface change at //net for webrtc

net/base/address_tracker_linux.h

Index: net/base/address_tracker_linux.h
diff --git a/net/base/address_tracker_linux.h b/net/base/address_tracker_linux.h
index 415e8c89e9d8dc354d48c8a48dc24064068f71fd..d3996127c6c1b0be8cedf621ec0c6a530fe30dd1 100644
--- a/net/base/address_tracker_linux.h
+++ b/net/base/address_tracker_linux.h
@@ -46,6 +46,7 @@ class NET_EXPORT_PRIVATE AddressTrackerLinux :
   void Init();
 
   AddressMap GetAddressMap() const;
+  base::hash_set<int> GetOnlineLinks() const;
 
   // Implementation of NetworkChangeNotifierLinux::GetCurrentConnectionType().
   // Safe to call from any thread, but will block until Init() has completed.
@@ -105,6 +106,7 @@ class NET_EXPORT_PRIVATE AddressTrackerLinux :
   AddressMap address_map_;
 
   // Set of interface indices for links that are currently online.
+  mutable base::Lock online_links_lock_;
   base::hash_set<int> online_links_;
 
   base::Lock is_offline_lock_;