Incorporate comments in Dbus code and add Eol icon

chromeos/dbus/update_engine_client.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_DBUS_UPDATE_ENGINE_CLIENT_H_
 #define CHROMEOS_DBUS_UPDATE_ENGINE_CLIENT_H_
 
 #include <stdint.h>
 
 #include <string>
@@ skipping 117 matching lines @@
 
   // If |get_current_channel| is set to true, calls |callback| with
   // the name of the channel that the device is currently
   // on. Otherwise, it calls it with the name of the channel the
   // device is supposed to be (in case of a pending channel
   // change). On error, calls |callback| with an empty string.
   virtual void GetChannel(bool get_current_channel,
                           const GetChannelCallback& callback) = 0;
 
   // Called once GetEolStatus() is complete. Takes one parameter;
-  // - EolStatus: the eol status of the device.
-  typedef base::Callback<void(int status)> GetEolStatusCallback;
+  // - EndOfLife Status: the end of life status of the device.
+  typedef base::Callback<void(update_engine::EndOfLifeStatus status)>
+      GetEolStatusCallback;
 
-  // Get Eol status of the device and calls |callback| when completed.
+  // Get EndOfLife status of the device and calls |callback| when completed.
   virtual void GetEolStatus(const GetEolStatusCallback& callback) = 0;
 
   // Returns an empty UpdateCheckCallback that does nothing.
   static UpdateCheckCallback EmptyUpdateCheckCallback();
 
   // Creates the instance.
   static UpdateEngineClient* Create(DBusClientImplementationType type);
 
   // Returns true if |target_channel| is more stable than |current_channel|.
   static bool IsTargetChannelMoreStable(const std::string& current_channel,
                                         const std::string& target_channel);
 
  protected:
   // Create() should be used instead.
   UpdateEngineClient();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(UpdateEngineClient);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_DBUS_UPDATE_ENGINE_CLIENT_H_