Fix to bug 91320.

cloud_print/virtual_driver/posix/virtual_driver_posix.cc

 // Copyright (c) 2011 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.
 
 #include <pwd.h>
 #include <stdio.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <sys/wait.h>
 
 #include <cups/backend.h>
 
 #include "base/at_exit.h"
 #include "base/base_paths.h"
 #include "base/command_line.h"
 #include "base/file_path.h"
 #include "base/logging.h"
 #include "base/path_service.h"
 
 #include "cloud_print/virtual_driver/posix/printer_driver_util_posix.h"
 
-int WriteToTemp(FILE* input_pdf, FilePath output_path) {
+void WriteToTemp(FILE* input_pdf, FilePath output_path) {
   FILE* output_pdf;
   char buffer[128];
   output_pdf = fopen(output_path.value().c_str(), "w");
   if (output_pdf == NULL) {
     LOG(ERROR) << "Unable to open file handle for writing output file";
     exit(CUPS_BACKEND_CANCEL);
   }
   // Read from input file or stdin and write to output file.
   while (fgets(buffer, sizeof(buffer), input_pdf) != NULL) {
     fputs(buffer, output_pdf);
@@ skipping 38 matching lines @@
   }
 
   if (argc < 6 || argc > 7) {
     fprintf(stderr, "Usage: GCP-Driver job-id user"
                     "title copies options [file]\n");
     return 0;
   }
 
   // AtExitManager is necessary to use the path service.
   base::AtExitManager aemanager;
-  // File handler for the temporary PDF we pass onto Chrome.
-  FILE* output_pdf;
   // CommandLine is only setup to enable logging, never used subseqeuently.
   CommandLine::Init(argc, argv);
   // Location for the log file.
   std::string log_location = "/var/log/GCP-Driver.log";
 
   // Set up logging.
   logging::InitLogging(log_location.c_str(),
                        logging::LOG_ONLY_TO_FILE,
                        logging::LOCK_LOG_FILE,
                        logging::APPEND_TO_OLD_LOG_FILE,
@@ skipping 52 matching lines @@
     // Launch Chrome and pass the print job onto Cloud Print.
     LaunchPrintDialog(output_path.value(), job_title, current_user);
 
     return 0;
   }
   // back in parent process.
   // wait for child, then terminate.
   waitpid(pid, NULL, 0);
   return 0;
 }