Add DatagramClientSocket::BindToDefaultNetwork(),GetBoundNetwork()

net/android/network_change_notifier_android.cc

 // 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.
 
 ////////////////////////////////////////////////////////////////////////////////
 // Threading considerations:
 //
 // This class is designed to meet various threading guarantees starting from the
 // ones imposed by NetworkChangeNotifier:
 // - The notifier can be constructed on any thread.
@@ skipping 155 matching lines @@
     NetworkChangeNotifier::NetworkList* networks) const {
   delegate_->GetCurrentlyConnectedNetworks(networks);
 }
 
 NetworkChangeNotifier::ConnectionType
 NetworkChangeNotifierAndroid::GetCurrentNetworkConnectionType(
     NetworkHandle network) const {
   return delegate_->GetNetworkConnectionType(network);
 }
 
-NetworkChangeNotifier::NetworkHandle
-NetworkChangeNotifierAndroid::GetCurrentDefaultNetwork() const {
-  return delegate_->GetCurrentDefaultNetwork();
+int NetworkChangeNotifierAndroid::GetCurrentDefaultNetwork(
+    NetworkChangeNotifier::NetworkHandle* network) const {
+  if (base::android::BuildInfo::GetInstance()->sdk_int() <
+      base::android::SDK_VERSION_LOLLIPOP) {
+    return ERR_NOT_IMPLEMENTED;
+  }
+  *network = delegate_->GetCurrentDefaultNetwork();
+  return OK;
 }
 
 void NetworkChangeNotifierAndroid::OnConnectionTypeChanged() {
   DnsConfigServiceThread::NotifyNetworkChangeNotifierObservers();
 }
 
 void NetworkChangeNotifierAndroid::OnMaxBandwidthChanged(
     double max_bandwidth_mbps,
     ConnectionType type) {
   NetworkChangeNotifier::NotifyObserversOfMaxBandwidthChange(max_bandwidth_mbps,
@@ skipping 53 matching lines @@
   // so delay IPAddressChanged so they get merged with the following
   // ConnectionTypeChanged signal.
   params.ip_address_offline_delay_ = base::TimeDelta::FromSeconds(1);
   params.ip_address_online_delay_ = base::TimeDelta::FromSeconds(1);
   params.connection_type_offline_delay_ = base::TimeDelta::FromSeconds(0);
   params.connection_type_online_delay_ = base::TimeDelta::FromSeconds(0);
   return params;
 }
 
 }  // namespace net