base::ListValue::Append cleanup: pass unique_ptr instead of the released pointer.

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 <stddef.h>
 
 #include <map>
 #include <set>
@@ skipping 596 matching lines @@
   }
 
   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);
 
   std::unique_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());
+  internal_args->Append(print_job.ToValue());
   std::unique_ptr<Event> event(
       new Event(events::PRINTER_PROVIDER_ON_PRINT_REQUESTED,
                 api::printer_provider::OnPrintRequested::kEventName,
                 std::move(internal_args)));
   event_router->DispatchEventToExtension(extension_id, std::move(event));
 }
 
 const PrinterProviderPrintJob* PrinterProviderAPIImpl::GetPrintJob(
     const Extension* extension,
     int request_id) const {
@@ skipping 136 matching lines @@
   return new PrinterProviderAPIImpl(context);
 }
 
 // static
 std::string PrinterProviderAPI::GetDefaultPrintError() {
   return api::printer_provider_internal::ToString(
       api::printer_provider_internal::PRINT_ERROR_FAILED);
 }
 
 }  // namespace extensions