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

net/android/network_change_notifier_delegate_android.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_ANDROID_NETWORK_CHANGE_NOTIFIER_DELEGATE_ANDROID_H_
 #define NET_ANDROID_NETWORK_CHANGE_NOTIFIER_DELEGATE_ANDROID_H_
 
 #include <string>
 
 #include "base/android/jni_android.h"
@@ skipping 88 matching lines @@
   void RemoveObserver(Observer* observer);
 
   // These methods are simply implementations of NetworkChangeNotifier APIs of
   // the same name. They can be called from any thread.
   ConnectionType GetCurrentConnectionType() const;
   void GetCurrentMaxBandwidthAndConnectionType(
       double* max_bandwidth_mbps,
       ConnectionType* connection_type) const;
   ConnectionType GetNetworkConnectionType(NetworkHandle network) const;
   NetworkHandle GetCurrentDefaultNetwork() const;
+  bool GetCurrentNetworkCaptivePortal() const;
   void GetCurrentlyConnectedNetworks(NetworkList* network_list) const;
 
   // Can only be called from the main (Java) thread.
   NetworkChangeNotifier::ConnectionSubtype GetCurrentConnectionSubtype() const;
 
   // Initializes JNI bindings.
   static bool Register(JNIEnv* env);
 
  private:
   friend class BaseNetworkChangeNotifierAndroidTest;
@@ skipping 32 matching lines @@
   double connection_max_bandwidth_;
   NetworkHandle default_network_;
   NetworkMap network_map_;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkChangeNotifierDelegateAndroid);
 };
 
 }  // namespace net
 
 #endif  // NET_ANDROID_NETWORK_CHANGE_NOTIFIER_DELEGATE_ANDROID_H_