[Re-land] Add network throttling as enterprise policy

chromeos/network/shill_property_handler.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 CHROMEOS_NETWORK_SHILL_PROPERTY_HANDLER_H_
 #define CHROMEOS_NETWORK_SHILL_PROPERTY_HANDLER_H_
 
 #include <list>
 #include <map>
 #include <set>
@@ skipping 121 matching lines @@
       const std::vector<std::string>& technologies,
       const network_handler::ErrorCallback& error_callback);
 
   // Sets the list of devices on which portal check is enabled.
   void SetCheckPortalList(const std::string& check_portal_list);
 
   // Sets the Manager.WakeOnLan property. Note: we do not track this state, we
   // only set it.
   void SetWakeOnLanEnabled(bool enabled);
 
+  // Calls shill to enable/disable network bandwidth throttling. If |enabled|
+  // is true, |upload_rate_kbits| and |download_rate_kbits| specify the rate
+  // in kbits/s to throttle to. If |enabled| is false, throttling is disabled
+  // and the rates are ignored.
+  void SetNetworkThrottlingStatus(bool enabled,
+                                  uint32_t upload_rate_kbits,
+                                  uint32_t download_rate_kbits);
+
   // Requests an immediate network scan.
   void RequestScan() const;
 
   // Requests all properties for the service or device (called for new items).
   void RequestProperties(ManagedState::ManagedType type,
                          const std::string& path);
 
   // ShillPropertyChangedObserver overrides
   void OnPropertyChanged(const std::string& key,
                          const base::Value& value) override;
@@ skipping 100 matching lines @@
   std::set<std::string> prohibited_technologies_;
   std::set<std::string> uninitialized_technologies_;
 
   DISALLOW_COPY_AND_ASSIGN(ShillPropertyHandler);
 };
 
 }  // namespace internal
 }  // namespace chromeos
 
 #endif  // CHROMEOS_NETWORK_SHILL_PROPERTY_HANDLER_H_