Narrow down to one generic error per action.

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>
@@ skipping 72 matching lines @@
   // DownloadActionDelegate method
   void BytesReceived(uint64_t bytes_received, uint64_t total);
 
  private:
   // Sets the status to the given status and notifies a status update
   // over dbus.
   void SetStatusAndNotify(UpdateStatus status);
 
   // Creates an error event object in |error_event_| to be included in
   // an OmahaRequestAction once the current action processor is done.
-  void CreatePendingErrorEvent(ActionExitCode code);
+  void CreatePendingErrorEvent(AbstractAction* action, ActionExitCode code);
 
   // If there's a pending error event allocated in |error_event_|,
   // schedules an OmahaRequestAction with that event in the current
   // processor, clears the pending event, updates the status and
   // returns true. Returns false otherwise.
   bool ScheduleErrorEventAction();
 
   struct timespec last_notify_time_;
 
   std::vector<std::tr1::shared_ptr<AbstractAction> > actions_;
@@ skipping 21 matching lines @@
 
   // Device paramaters common to all Omaha requests.
   OmahaRequestDeviceParams omaha_request_params_;
 
   DISALLOW_COPY_AND_ASSIGN(UpdateAttempter);
 };
 
 }  // namespace chromeos_update_engine
 
 #endif  // CHROMEOS_PLATFORM_UPDATE_ENGINE_UPDATE_ATTEMPTER_H__