Add network cost as part of the connection comparison.

webrtc/api/java/jni/androidnetworkmonitor_jni.cc

 /*
  *  Copyright 2015 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 295 matching lines @@
   network_info_by_handle_.clear();
   for (NetworkInformation network : network_infos) {
     OnNetworkConnected_w(network);
   }
 }
 
 rtc::AdapterType AndroidNetworkMonitor::GetAdapterType(
     const std::string& if_name) {
   auto iter = adapter_type_by_name_.find(if_name);
   if (iter == adapter_type_by_name_.end()) {
+    LOG(LS_WARNING) << "Get adapter type for an unknown interface: " << if_name;
     return rtc::ADAPTER_TYPE_UNKNOWN;
   }
   return iter->second;
 }
 
 rtc::NetworkMonitorInterface*
 AndroidNetworkMonitorFactory::CreateNetworkMonitor() {
   return new AndroidNetworkMonitor();
 }
 
@@ skipping 32 matching lines @@
 JOW(void, NetworkMonitor_nativeNotifyOfNetworkDisconnect)(
     JNIEnv* jni, jobject j_monitor, jlong j_native_monitor,
     jint network_handle) {
   AndroidNetworkMonitor* network_monitor =
       reinterpret_cast<AndroidNetworkMonitor*>(j_native_monitor);
   network_monitor->OnNetworkDisconnected(
       static_cast<NetworkHandle>(network_handle));
 }
 
 }  // namespace webrtc_jni