Cleanup: Remove unused variables in chrome/ found by Scythe.

chrome/service/cloud_print/printer_job_handler.cc

 // Copyright (c) 2012 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 "chrome/service/cloud_print/printer_job_handler.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/files/file_util.h"
 #include "base/json/json_reader.h"
@@ skipping 53 matching lines @@
     PrintSystem* print_system,
     Delegate* delegate)
     : print_system_(print_system),
       printer_info_(printer_info),
       printer_info_cloud_(printer_info_cloud),
       cloud_print_server_url_(cloud_print_server_url),
       delegate_(delegate),
       local_job_id_(-1),
       next_json_data_handler_(NULL),
       next_data_handler_(NULL),
-      server_error_count_(0),
       print_thread_("Chrome_CloudPrintJobPrintThread"),
       job_handler_message_loop_proxy_(
           base::MessageLoopProxy::current()),
       shutting_down_(false),
       job_check_pending_(false),
       printer_update_pending_(true),
       task_in_progress_(false),
       weak_ptr_factory_(this) {
 }
 
@@ skipping 721 matching lines @@
                            job_details.print_data_mime_type_,
                            printer_name,
                            base::UTF16ToUTF8(document_name),
                            job_details.tags_,
                            this)) {
     OnJobSpoolFailed();
   }
 }
 
 }  // namespace cloud_print