Cleanup jobs which have failed.

chrome/browser/chromeos/printing/cups_print_job_manager_impl.h

 // Copyright 2017 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_CHROMEOS_PRINTING_CUPS_PRINT_JOB_MANAGER_IMPL_H_
 #define CHROME_BROWSER_CHROMEOS_PRINTING_CUPS_PRINT_JOB_MANAGER_IMPL_H_
 
 #include <map>
 #include <memory>
 #include <string>
@@ skipping 17 matching lines @@
   std::vector<::printing::QueueStatus> queues;
 };
 
 class CupsPrintJobManagerImpl : public CupsPrintJobManager,
                                 public content::NotificationObserver {
  public:
   explicit CupsPrintJobManagerImpl(Profile* profile);
   ~CupsPrintJobManagerImpl() override;
 
   // CupsPrintJobManager overrides:
-  bool CancelPrintJob(CupsPrintJob* job) override;
+  void CancelPrintJob(CupsPrintJob* job) override;
   bool SuspendPrintJob(CupsPrintJob* job) override;
   bool ResumePrintJob(CupsPrintJob* job) override;
 
   // NotificationObserver overrides:
   void Observe(int type,
                const content::NotificationSource& source,
                const content::NotificationDetails& details) override;
 
  private:
   // Begin monitoring a print job for a given |printer_name| with the given
   // |title| with the pages |total_page_number|.
   bool CreatePrintJob(const std::string& printer_name,
                       const std::string& title,
                       int job_id,
                       int total_page_number);
 
   // Schedule a query of CUPS for print job status with the default delay.
   void ScheduleQuery();
   // Schedule a query of CUPS for print job status with a delay of |delay|.
   void ScheduleQuery(const base::TimeDelta& delay);
 
   // Schedule the CUPS query off the UI thread. Posts results back to UI thread
   // to UpdateJobs.
   void PostQuery();
 
+  // Updates the state of a print job based on |printer_status| and |job|.
+  // Returns true if observers need to be notified of an update.
+  bool UpdatePrintJob(const ::printing::PrinterStatus& printer_status,
+                      const ::printing::CupsJob& job,
+                      CupsPrintJob* print_job);
+
   // Process jobs from CUPS and perform notifications.
   void UpdateJobs(const QueryResult& results);
 
   // Mark remaining jobs as errors and remove active jobs.
   void PurgeJobs();
 
+  // Cancel the print job on the blocking thread.
+  void CancelJobImpl(const std::string& printer_id, const int job_id);
+
   // Notify observers that a state update has occured for |job|.
   void NotifyJobStateUpdate(CupsPrintJob* job);
 
   // Ongoing print jobs.
   std::map<std::string, std::unique_ptr<CupsPrintJob>> jobs_;
 
   // Prevents multiple queries from being scheduled simultaneously.
   bool in_query_ = false;
 
   // Records the number of consecutive times the GetJobs query has failed.
   int retry_count_ = 0;
 
   ::printing::CupsConnection cups_connection_;
   content::NotificationRegistrar registrar_;
   base::WeakPtrFactory<CupsPrintJobManagerImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(CupsPrintJobManagerImpl);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_PRINTING_CUPS_PRINT_JOB_MANAGER_IMPL_H_