Cleanup jobs which have failed.

chrome/browser/chromeos/printing/fake_cups_print_job_manager.h

 // Copyright 2016 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_FAKE_CUPS_PRINT_JOB_MANAGER_H_
 #define CHROME_BROWSER_CHROMEOS_PRINTING_FAKE_CUPS_PRINT_JOB_MANAGER_H_
 
 #include <memory>
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/chromeos/printing/cups_print_job_manager.h"
 
 class Profile;
 
 namespace chromeos {
 
 class FakeCupsPrintJobManager : public CupsPrintJobManager {
  public:
   explicit FakeCupsPrintJobManager(Profile* profile);
   ~FakeCupsPrintJobManager() override;
 
   bool CreatePrintJob(const std::string& printer_name,
                       const std::string& title,
                       int total_page_number);
 
-  bool CancelPrintJob(CupsPrintJob* job) override;
+  void CancelPrintJob(CupsPrintJob* job) override;
   bool SuspendPrintJob(CupsPrintJob* job) override;
   bool ResumePrintJob(CupsPrintJob* job) override;
 
  private:
   void ChangePrintJobState(CupsPrintJob* job);
 
   using PrintJobs = std::vector<std::unique_ptr<CupsPrintJob>>;
 
   PrintJobs print_jobs_;
   static int next_job_id_;
   base::WeakPtrFactory<FakeCupsPrintJobManager> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeCupsPrintJobManager);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_PRINTING_FAKE_CUPS_PRINT_JOB_MANAGER_H_