Convert the async device ID getter to a chrome resource host

ppapi/thunk/ppb_flash_device_id_thunk.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 "ppapi/c/private/ppb_flash_device_id.h"
 #include "ppapi/thunk/enter.h"
 #include "ppapi/thunk/thunk.h"
 #include "ppapi/thunk/ppb_flash_device_id_api.h"
 #include "ppapi/thunk/resource_creation_api.h"
 
 namespace ppapi {
 namespace thunk {
 
 namespace {
 
 PP_Resource Create(PP_Instance instance) {
   EnterResourceCreation enter(instance);
   if (enter.failed())
     return 0;
   return enter.functions()->CreateFlashDeviceID(instance);
 }
 
 int32_t GetDeviceID(PP_Resource resource,
                     PP_Var* id,
                     PP_CompletionCallback callback) {
   EnterResource<PPB_Flash_DeviceID_API> enter(resource, callback, true);
   if (enter.failed())
     return enter.retval();
-  return enter.SetResult(enter.object()->GetDeviceID(id, callback));
+  return enter.SetResult(enter.object()->GetDeviceID(id, enter.callback()));
 }
 
 const PPB_Flash_DeviceID g_ppb_flash_deviceid_thunk = {
   &Create,
   &GetDeviceID
 };
 
 }  // namespace
 
 const PPB_Flash_DeviceID_1_0* GetPPB_Flash_DeviceID_1_0_Thunk() {
   return &g_ppb_flash_deviceid_thunk;
 }
 
 }  // namespace thunk
 }  // namespace ppapi