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

net/android/network_library.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_library.h"
 
 #include "base/android/context_utils.h"
 #include "base/android/jni_android.h"
 #include "base/android/jni_array.h"
 #include "base/android/jni_string.h"
@@ skipping 109 matching lines @@
           base::android::AttachCurrentThread(),
           base::android::GetApplicationContext()));
 }
 
 bool GetIsRoaming() {
   return Java_AndroidNetworkLibrary_getIsRoaming(
       base::android::AttachCurrentThread(),
       base::android::GetApplicationContext());
 }
 
+bool GetIsCaptivePortal() {
+  return Java_AndroidNetworkLibrary_getIsCaptivePortal(
+      base::android::AttachCurrentThread(),
+      base::android::GetApplicationContext());
+}
+
 std::string GetWifiSSID() {
   return base::android::ConvertJavaStringToUTF8(
       Java_AndroidNetworkLibrary_getWifiSSID(
           base::android::AttachCurrentThread(),
           base::android::GetApplicationContext()));
 }
 
 }  // namespace android
 }  // namespace net