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diff --git a/chromium/net/base/network_change_notifier_linux.h b/chromium/net/base/network_change_notifier_linux.h
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+// 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_BASE_NETWORK_CHANGE_NOTIFIER_LINUX_H_
+#define NET_BASE_NETWORK_CHANGE_NOTIFIER_LINUX_H_
+
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "base/memory/scoped_ptr.h"
+#include "net/base/net_export.h"
+#include "net/base/network_change_notifier.h"
+
+namespace net {
+
+class NET_EXPORT_PRIVATE NetworkChangeNotifierLinux
+ : public NetworkChangeNotifier {
+ public:
+ static NetworkChangeNotifierLinux* Create();
+
+ private:
+ class Thread;
+
+ NetworkChangeNotifierLinux();
+ virtual ~NetworkChangeNotifierLinux();
+ static NetworkChangeCalculatorParams NetworkChangeCalculatorParamsLinux();
+
+ // NetworkChangeNotifier:
+ virtual ConnectionType GetCurrentConnectionType() const OVERRIDE;
+
+ virtual const internal::AddressTrackerLinux*
+ GetAddressTrackerInternal() const OVERRIDE;
+
+ // The thread used to listen for notifications. This relays the notification
+ // to the registered observers without posting back to the thread the object
+ // was created on.
+ // Also used for DnsConfigService which requires TYPE_IO message loop.
+ scoped_ptr<Thread> notifier_thread_;
+
+ DISALLOW_COPY_AND_ASSIGN(NetworkChangeNotifierLinux);
+};
+
+} // namespace net
+
+#endif // NET_BASE_NETWORK_CHANGE_NOTIFIER_LINUX_H_