Add network throttling as an enterprise policy

chrome/browser/chromeos/net/network_throttling_observer.h

+// Copyright 2014 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 CHROME_BROWSER_CHROMEOS_NET_NETWORK_THROTTLING_OBSERVER_H_
+#define CHROME_BROWSER_CHROMEOS_NET_NETWORK_THROTTLING_OBSERVER_H_
+
+#include "base/memory/weak_ptr.h"
+
+class PrefRegistrySimple;
+class Profile;
+
+namespace chromeos {
+
+namespace network_throttling_observer {
+
+void RegisterPrefs(PrefRegistrySimple* registry);
+}
+
+// TODO(kirtika): Explain what this class does
+// TODO(kirtika): Check and remove unnecessary dependencies
+class NetworkThrottlingObserver {
+ public:
+  NetworkThrottlingObserver();
+  ~NetworkThrottlingObserver();
+
+  static NetworkThrottlingObserver* Get();
+
+  // Should be called whenever the network throttling policy changes
+  void OnPreferenceChanged(bool throttling_enabled,
+                           uint32_t upload_rate_kbits,
+                           uint32_t download_rate_kbits);
+
+ private:
+  base::WeakPtrFactory<NetworkThrottlingObserver> weak_ptr_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(NetworkThrottlingObserver);
+};
+
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_CHROMEOS_NET_NETWORK_THROTTLING_OBSERVER_H_