AU: Handle firmware update failure when booted from FW slot B.

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>
@@ skipping 199 matching lines @@
 
   // Pointer to the UMA metrics collection library.
   MetricsLibraryInterface* metrics_lib_;
 
   // The current UpdateCheckScheduler to notify of state transitions.
   UpdateCheckScheduler* update_check_scheduler_;
 
   // Pending error event, if any.
   scoped_ptr<OmahaEvent> error_event_;
 
+  // If we should request a reboot even tho we failed the update
+  bool fake_update_success_;
+
   // HTTP server response code from the last HTTP request action.
   int http_response_code_;
 
   // Current process priority.
   utils::ProcessPriority priority_;
 
   // The process priority management timeout source.
   GSource* manage_priority_source_;
 
   // Set to true if an update download is active (and BytesReceived
@@ skipping 24 matching lines @@
 
   // True if UpdateBootFlags has already been called
   bool updated_boot_flags_;
 
   DISALLOW_COPY_AND_ASSIGN(UpdateAttempter);
 };
 
 }  // namespace chromeos_update_engine
 
 #endif  // CHROMEOS_PLATFORM_UPDATE_ENGINE_UPDATE_ATTEMPTER_H__