Expose connection subtype from NetworkChangeNotifier

net/base/network_change_notifier.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/base/network_change_notifier.h"
 
 #include <limits>
 #include <unordered_set>
 
 #include "base/macros.h"
@@ skipping 529 matching lines @@
 
 // static
 NetworkChangeNotifier::ConnectionType
 NetworkChangeNotifier::GetConnectionType() {
   return g_network_change_notifier ?
       g_network_change_notifier->GetCurrentConnectionType() :
       CONNECTION_UNKNOWN;
 }
 
 // static
+NetworkChangeNotifier::ConnectionSubtype
+NetworkChangeNotifier::GetConnectionSubtype() {
+  return g_network_change_notifier
+             ? g_network_change_notifier->GetCurrentConnectionSubtype()
+             : SUBTYPE_UNKNOWN;
+}
+
+// static
 void NetworkChangeNotifier::GetMaxBandwidthAndConnectionType(
     double* max_bandwidth_mbps,
     ConnectionType* connection_type) {
   if (!g_network_change_notifier) {
     *connection_type = CONNECTION_UNKNOWN;
     *max_bandwidth_mbps = GetMaxBandwidthForConnectionSubtype(SUBTYPE_UNKNOWN);
     return;
   }
 
   g_network_change_notifier->GetCurrentMaxBandwidthAndConnectionType(
@@ skipping 418 matching lines @@
   network_change_calculator_->Init();
 }
 
 #if defined(OS_LINUX)
 const internal::AddressTrackerLinux*
 NetworkChangeNotifier::GetAddressTrackerInternal() const {
   return NULL;
 }
 #endif
 
+NetworkChangeNotifier::ConnectionSubtype
+NetworkChangeNotifier::GetCurrentConnectionSubtype() const {
+  return SUBTYPE_UNKNOWN;
+}
+
 void NetworkChangeNotifier::GetCurrentMaxBandwidthAndConnectionType(
     double* max_bandwidth_mbps,
     ConnectionType* connection_type) const {
   // This default implementation conforms to the NetInfo V3 specification but
   // should be overridden to provide specific bandwidth data based on the
   // platform.
   *connection_type = GetCurrentConnectionType();
   *max_bandwidth_mbps =
       *connection_type == CONNECTION_NONE
           ? GetMaxBandwidthForConnectionSubtype(SUBTYPE_NONE)
@@ skipping 171 matching lines @@
 
 NetworkChangeNotifier::DisableForTest::~DisableForTest() {
   DCHECK(!g_network_change_notifier);
   g_network_change_notifier = network_change_notifier_;
 }
 
 void NetworkChangeNotifier::DNSObserver::OnInitialDNSConfigRead() {
 }
 
 }  // namespace net