Add title property to chrome.printerProvider pritn job

extensions/browser/api/printer_provider/printer_provider_api.cc

 // Copyright 2015 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 "extensions/browser/api/printer_provider/printer_provider_api.h"
 
 #include <map>
 #include <set>
 #include <utility>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/i18n/rtl.h"
 #include "base/json/json_string_value_serializer.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted_memory.h"
 #include "base/scoped_observer.h"
 #include "base/strings/string16.h"
+#include "base/strings/utf_string_conversions.h"
 #include "base/values.h"
 #include "extensions/browser/api/printer_provider/printer_provider_print_job.h"
 #include "extensions/browser/api/printer_provider_internal/printer_provider_internal_api.h"
 #include "extensions/browser/api/printer_provider_internal/printer_provider_internal_api_observer.h"
 #include "extensions/browser/event_router.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/browser/extension_registry_observer.h"
 #include "extensions/common/api/printer_provider.h"
 #include "extensions/common/api/printer_provider_internal.h"
 #include "extensions/common/extension.h"
@@ skipping 474 matching lines @@
   if (!ticket_value ||
       !core_api::printer_provider::PrintJob::Ticket::Populate(
           *ticket_value, &print_job.ticket)) {
     callback.Run(false,
                  core_api::printer_provider::ToString(
                      core_api::printer_provider::PRINT_ERROR_INVALID_TICKET));
     return;
   }
 
   print_job.content_type = job.content_type;
+  print_job.title = base::UTF16ToUTF8(job.job_title);
   int request_id = pending_print_requests_[extension_id].Add(job, callback);
 
   scoped_ptr<base::ListValue> internal_args(new base::ListValue);
   // Request id is not part of the public API and it will be massaged out in
   // custom bindings.
   internal_args->AppendInteger(request_id);
   internal_args->Append(print_job.ToValue().release());
   scoped_ptr<Event> event(
       new Event(core_api::printer_provider::OnPrintRequested::kEventName,
                 internal_args.Pass()));
@@ skipping 109 matching lines @@
   return new PrinterProviderAPIImpl(context);
 }
 
 // static
 std::string PrinterProviderAPI::GetDefaultPrintError() {
   return core_api::printer_provider_internal::ToString(
       core_api::printer_provider_internal::PRINT_ERROR_FAILED);
 }
 
 }  // namespace extensions