Init: Start Update Engine at startup

src/platform/update_engine/update_attempter.h

 // Copyright (c) 2010 The Chromium OS 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_PLATFORM_UPDATE_ENGINE_UPDATE_ATTEMPTER_H__
 #define CHROMEOS_PLATFORM_UPDATE_ENGINE_UPDATE_ATTEMPTER_H__
 
 #include <time.h>
 #include <tr1/memory>
 #include <string>
 #include <vector>
 #include <glib.h>
 #include "update_engine/action_processor.h"
 #include "update_engine/download_action.h"
 #include "update_engine/omaha_response_handler_action.h"
 
 struct UpdateEngineService;
 
 namespace chromeos_update_engine {
 
+extern const char* kUpdateCompletedMarker;
+
 enum UpdateStatus {
   UPDATE_STATUS_IDLE = 0,
   UPDATE_STATUS_CHECKING_FOR_UPDATE,
   UPDATE_STATUS_UPDATE_AVAILABLE,
   UPDATE_STATUS_DOWNLOADING,
   UPDATE_STATUS_VERIFYING,
   UPDATE_STATUS_FINALIZING,
   UPDATE_STATUS_UPDATED_NEED_REBOOT
 };
 
 const char* UpdateStatusToString(UpdateStatus status);
 
 class UpdateAttempter : public ActionProcessorDelegate,
                         public DownloadActionDelegate {
  public:
   UpdateAttempter() : full_update_(false),
                       dbus_service_(NULL),
                       status_(UPDATE_STATUS_IDLE),
                       download_progress_(0.0),
                       last_checked_time_(0),
                       new_version_("0.0.0.0"),
                       new_size_(0) {
     last_notify_time_.tv_sec = 0;
     last_notify_time_.tv_nsec = 0;
+    if (utils::FileExists(kUpdateCompletedMarker))
+      status_ = UPDATE_STATUS_UPDATED_NEED_REBOOT;
   }
   void Update(bool force_full_update);
   
   // ActionProcessorDelegate methods:
   void ProcessingDone(const ActionProcessor* processor, bool success);
   void ProcessingStopped(const ActionProcessor* processor);
   void ActionCompleted(ActionProcessor* processor,
                        AbstractAction* action,
                        bool success);
   
@@ skipping 44 matching lines @@
   int64_t last_checked_time_;
   std::string new_version_;
   int64_t new_size_;
 
   DISALLOW_COPY_AND_ASSIGN(UpdateAttempter);
 };
 
 }  // namespace chromeos_update_engine
 
 #endif  // CHROMEOS_PLATFORM_UPDATE_ENGINE_UPDATE_ATTEMPTER_H__