Get the adapter type information from Android OS.

webrtc/base/network.cc

 /*
  *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 423 matching lines @@
 
     int prefix_length = CountIPMaskBits(mask);
     prefix = TruncateIP(ip, prefix_length);
     std::string key = MakeNetworkKey(std::string(cursor->ifa_name),
                                      prefix, prefix_length);
     auto existing_network = current_networks.find(key);
     if (existing_network == current_networks.end()) {
       AdapterType adapter_type = ADAPTER_TYPE_UNKNOWN;
       if (cursor->ifa_flags & IFF_LOOPBACK) {
         adapter_type = ADAPTER_TYPE_LOOPBACK;
+      } else if (network_monitor_) {
+        adapter_type = network_monitor_->GetAdapterType(cursor->ifa_name);
       }
 #if defined(WEBRTC_IOS)
       // Cell networks are pdp_ipN on iOS.
       if (strncmp(cursor->ifa_name, "pdp_ip", 6) == 0) {
         adapter_type = ADAPTER_TYPE_CELLULAR;
       }
 #endif
       // TODO(phoglund): Need to recognize other types as well.
       scoped_ptr<Network> network(new Network(cursor->ifa_name,
                                               cursor->ifa_name, prefix,
@@ skipping 462 matching lines @@
   std::stringstream ss;
   // Print out the first space-terminated token of the network desc, plus
   // the IP address.
   ss << "Net[" << description_.substr(0, description_.find(' '))
      << ":" << prefix_.ToSensitiveString() << "/" << prefix_length_
      << ":" << AdapterTypeToString(type_) << "]";
   return ss.str();
 }
 
 }  // namespace rtc