Incorporate comments in Dbus code and add Eol icon

chrome/browser/ui/webui/help/version_updater.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 CHROME_BROWSER_UI_WEBUI_HELP_VERSION_UPDATER_H_
 #define CHROME_BROWSER_UI_WEBUI_HELP_VERSION_UPDATER_H_
 
 #include <string>
 
 #include "base/callback.h"
 #include "base/strings/string16.h"
 #include "build/build_config.h"
 
+#if defined(OS_CHROMEOS)
+#include "third_party/cros_system_api/dbus/update_engine/dbus-constants.h"
+#endif  // defined(OS_CHROMEOS)
+
 namespace content {
 class WebContents;
 }
 
 // Interface implemented to expose per-platform updating functionality.
 class VersionUpdater {
  public:
   // Update process state machine.
   enum Status {
     CHECKING,
@@ skipping 11 matching lines @@
   enum PromotionState {
     PROMOTE_HIDDEN,
     PROMOTE_ENABLED,
     PROMOTE_DISABLED
   };
 
   // TODO(jhawkins): Use a delegate interface instead of multiple callback
   // types.
 #if defined(OS_CHROMEOS)
   typedef base::Callback<void(const std::string&)> ChannelCallback;
-  typedef base::Callback<void(int status)> EolStatusCallback;
+  typedef base::Callback<void(update_engine::EndOfLifeStatus status)>
+      EolStatusCallback;
 #endif
 
   // Used to update the client of status changes. int parameter is the progress
   // and should only be non-zero for the UPDATING state.
   // base::string16 parameter is a message explaining a failure.
   typedef base::Callback<void(Status, int, const base::string16&)>
       StatusCallback;
 
   // Used to show or hide the promote UI elements. Mac-only.
   typedef base::Callback<void(PromotionState)> PromoteCallback;
@@ skipping 21 matching lines @@
 #if defined(OS_CHROMEOS)
   virtual void SetChannel(const std::string& channel,
                           bool is_powerwash_allowed) = 0;
   virtual void GetChannel(bool get_current_channel,
                           const ChannelCallback& callback) = 0;
   virtual void GetEolStatus(const EolStatusCallback& callback) = 0;
 #endif
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_HELP_VERSION_UPDATER_H_