For actions, switch bool success into an exit code.

update_attempter.cc

 // 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.
 
 #include "update_engine/update_attempter.h"
 
 // From 'man clock_gettime': feature test macro: _POSIX_C_SOURCE >= 199309L
 #ifndef _POSIX_C_SOURCE
 #define _POSIX_C_SOURCE 199309L
 #endif  // _POSIX_C_SOURCE
@@ skipping 180 matching lines @@
   if (status_ != UPDATE_STATUS_IDLE) {
     LOG(INFO) << "Check for update requested, but status is "
               << UpdateStatusToString(status_) << ", so not checking.";
     return;
   }
   Update();
 }
 
 // Delegate methods:
 void UpdateAttempter::ProcessingDone(const ActionProcessor* processor,
-                                     bool success) {
+                                     ActionExitCode code) {
   CHECK(response_handler_action_);
   LOG(INFO) << "Processing Done.";
   actions_.clear();
-  if (success) {
+  if (code == kActionCodeSuccess) {
     SetStatusAndNotify(UPDATE_STATUS_UPDATED_NEED_REBOOT);
     utils::WriteFile(kUpdateCompletedMarker, "", 0);
   } else {
     LOG(INFO) << "Update failed.";
     SetStatusAndNotify(UPDATE_STATUS_IDLE);
   }
 }
 
 void UpdateAttempter::ProcessingStopped(const ActionProcessor* processor) {
   download_progress_ = 0.0;
   SetStatusAndNotify(UPDATE_STATUS_IDLE);
   actions_.clear();
 }
 
 // Called whenever an action has finished processing, either successfully
 // or otherwise.
 void UpdateAttempter::ActionCompleted(ActionProcessor* processor,
                                       AbstractAction* action,
-                                      bool success) {
+                                      ActionExitCode code) {
   // Reset download progress regardless of whether or not the download action
   // succeeded.
   const string type = action->Type();
   if (type == DownloadAction::StaticType())
     download_progress_ = 0.0;
-  if (!success)
+  if (code != kActionCodeSuccess)
     return;
   // Find out which action completed.
   if (type == OmahaResponseHandlerAction::StaticType()) {
     SetStatusAndNotify(UPDATE_STATUS_DOWNLOADING);
     OmahaResponseHandlerAction* omaha_response_handler_action =
         dynamic_cast<OmahaResponseHandlerAction*>(action);
     CHECK(omaha_response_handler_action);
     const InstallPlan& plan = omaha_response_handler_action->install_plan();
     last_checked_time_ = time(NULL);
     // TODO(adlr): put version in InstallPlan
@@ skipping 56 matching lines @@
   update_engine_service_emit_status_update(
       dbus_service_,
       last_checked_time_,
       download_progress_,
       UpdateStatusToString(status_),
       new_version_.c_str(),
       new_size_);
 }
 
 }  // namespace chromeos_update_engine