Create a Tether section in the system tray network list.

chromeos/network/network_state_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_NETWORK_STATE_HANDLER_H_
 #define CHROMEOS_NETWORK_NETWORK_STATE_HANDLER_H_
 
 #include <map>
 #include <memory>
 #include <set>
@@ skipping 73 matching lines @@
   // themselves and disable any networking.
   void Shutdown();
 
   // Add/remove observers.
   void AddObserver(NetworkStateHandlerObserver* observer,
                    const tracked_objects::Location& from_here);
   void RemoveObserver(NetworkStateHandlerObserver* observer,
                       const tracked_objects::Location& from_here);
 
   // Returns the state for technology |type|. Only
-  // NetworkTypePattern::Primitive, ::Mobile and ::Ethernet are supported.
+  // NetworkTypePattern::Primitive, ::Mobile, ::Ethernet, and ::Tether are
+  // supported.
   TechnologyState GetTechnologyState(const NetworkTypePattern& type) const;
   bool IsTechnologyAvailable(const NetworkTypePattern& type) const {
     return GetTechnologyState(type) != TECHNOLOGY_UNAVAILABLE;
   }
   bool IsTechnologyEnabled(const NetworkTypePattern& type) const {
     return GetTechnologyState(type) == TECHNOLOGY_ENABLED;
   }
   bool IsTechnologyProhibited(const NetworkTypePattern& type) const {
     return GetTechnologyState(type) == TECHNOLOGY_PROHIBITED;
   }
@@ skipping 328 matching lines @@
 
   // Ensure that Shutdown() gets called exactly once.
   bool did_shutdown_ = false;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkStateHandler);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_NETWORK_NETWORK_STATE_HANDLER_H_