Determine connection type in NetworkChangeNotifierLinux.

net/base/net_util.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NET_BASE_NET_UTIL_H_
 #define NET_BASE_NET_UTIL_H_
 
 #include "build/build_config.h"
 
 #if defined(OS_WIN)
@@ skipping 478 matching lines @@
   EXCLUDE_HOST_SCOPE_VIRTUAL_INTERFACES           = 0x1,
 };
 
 // Returns list of network interfaces except loopback interface. If an
 // interface has more than one address, a separate entry is added to
 // the list for each address.
 // Can be called only on a thread that allows IO.
 NET_EXPORT bool GetNetworkList(NetworkInterfaceList* networks,
                                int policy);
 
+// Gets the current connection type based on |interfaces|. Returns
+// CONNECTION_NONE if there are no interfaces, CONNECTION_UNKNOWN if two
+// interfaces have different connection types or the connection type of all
+// interfaces if they have the same interface type.
+NET_EXPORT NetworkChangeNotifier::ConnectionType
+ConnectionTypeFromInterfaceList(const NetworkInterfaceList& interfaces);

[pauljensen, 2015/01/15 15:05:10]

Please move this to network_change_notifier.h as it's really only appropriate
for NetworkChangeNotifier implementations.

[derekjchow1, 2015/01/15 20:32:51]

Done.

+
 // General category of the IEEE 802.11 (wifi) physical layer operating mode.
 enum WifiPHYLayerProtocol {
   // No wifi support or no associated AP.
   WIFI_PHY_LAYER_PROTOCOL_NONE,
   // An obsolete modes introduced by the original 802.11, e.g. IR, FHSS.
   WIFI_PHY_LAYER_PROTOCOL_ANCIENT,
   // 802.11a, OFDM-based rates.
   WIFI_PHY_LAYER_PROTOCOL_A,
   // 802.11b, DSSS or HR DSSS.
   WIFI_PHY_LAYER_PROTOCOL_B,
@@ skipping 64 matching lines @@
   DSCP_CS5  = 40,  // Video
   DSCP_EF   = 46,  // Voice
   DSCP_CS6  = 48,  // Voice
   DSCP_CS7  = 56,  // Control messages
   DSCP_LAST = DSCP_CS7
 };
 
 }  // namespace net
 
 #endif  // NET_BASE_NET_UTIL_H_