Expose API to detect when captive portal probe was blocked on Android

net/android/network_change_notifier_delegate_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.
 
 #include "net/android/network_change_notifier_delegate_android.h"
 
 #include "base/android/context_utils.h"
 #include "base/android/jni_array.h"
 #include "base/logging.h"
 #include "jni/NetworkChangeNotifier_jni.h"
@@ skipping 124 matching lines @@
     return ConnectionType::CONNECTION_UNKNOWN;
   return network_entry->second;
 }
 
 NetworkChangeNotifier::NetworkHandle
 NetworkChangeNotifierDelegateAndroid::GetCurrentDefaultNetwork() const {
   base::AutoLock auto_lock(connection_lock_);
   return default_network_;
 }
 
+bool NetworkChangeNotifierDelegateAndroid::GetCurrentNetworkCaptivePortal()
+    const {
+  return Java_NetworkChangeNotifier_getCurrentNetworkCaptivePortal(
+      base::android::AttachCurrentThread(), java_network_change_notifier_);
+}
+
 void NetworkChangeNotifierDelegateAndroid::GetCurrentlyConnectedNetworks(
     NetworkList* network_list) const {
   network_list->clear();
   base::AutoLock auto_lock(connection_lock_);
   for (auto i : network_map_)
     network_list->push_back(i.first);
 }
 
 void NetworkChangeNotifierDelegateAndroid::NotifyConnectionTypeChanged(
     JNIEnv* env,
@@ skipping 209 matching lines @@
   Java_NetworkChangeNotifier_fakeDefaultNetwork(env, network, type);
 }
 
 void NetworkChangeNotifierDelegateAndroid::FakeMaxBandwidthChanged(
     double max_bandwidth_mbps) {
   JNIEnv* env = base::android::AttachCurrentThread();
   Java_NetworkChangeNotifier_fakeMaxBandwidthChanged(env, max_bandwidth_mbps);
 }
 
 }  // namespace net