Convert to new enter method

ppapi/thunk/ppb_audio_input_trusted_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/pp_errors.h"
 #include "ppapi/c/trusted/ppb_audio_input_trusted_dev.h"
-#include "ppapi/thunk/common.h"
 #include "ppapi/thunk/enter.h"
 #include "ppapi/thunk/ppb_audio_input_api.h"
 #include "ppapi/thunk/resource_creation_api.h"
 #include "ppapi/thunk/thunk.h"
 
 namespace ppapi {
 namespace thunk {
 
 namespace {
 
 typedef EnterResource<PPB_AudioInput_API> EnterAudioInput;
 
 PP_Resource Create(PP_Instance instance_id) {
   EnterFunction<ResourceCreationAPI> enter(instance_id, true);
   if (enter.failed())
     return 0;
   return enter.functions()->CreateAudioInputTrusted(instance_id);
 }
 
 int32_t Open(PP_Resource audio_id,
              PP_Resource config_id,
-             PP_CompletionCallback create_callback) {
-  EnterAudioInput enter(audio_id, true);
+             PP_CompletionCallback callback) {
+  EnterAudioInput enter(audio_id, callback, true);
   if (enter.failed())
-    return MayForceCallback(create_callback, PP_ERROR_BADRESOURCE);
-  int32_t result = enter.object()->OpenTrusted(config_id, create_callback);
-  return MayForceCallback(create_callback, result);
+    return enter.retval();
+  return enter.SetResult(enter.object()->OpenTrusted(config_id, callback));
 }
 
 int32_t GetSyncSocket(PP_Resource audio_id, int* sync_socket) {
   EnterAudioInput enter(audio_id, true);
   if (enter.failed())
-    return PP_ERROR_BADRESOURCE;
+    return enter.retval();
   return enter.object()->GetSyncSocket(sync_socket);
 }
 
 int32_t GetSharedMemory(PP_Resource audio_id,
                         int* shm_handle,
                         uint32_t* shm_size) {
   EnterAudioInput enter(audio_id, true);
   if (enter.failed())
-    return PP_ERROR_BADRESOURCE;
+    return enter.retval();
   return enter.object()->GetSharedMemory(shm_handle, shm_size);
 }
 
 const PPB_AudioInputTrusted_Dev g_ppb_audioinput_trusted_thunk = {
   &Create,
   &Open,
   &GetSyncSocket,
   &GetSharedMemory,
 };
 
 }  // namespace
 
 const PPB_AudioInputTrusted_Dev_0_1* GetPPB_AudioInputTrusted_0_1_Thunk() {
   return &g_ppb_audioinput_trusted_thunk;
 }
 
 }  // namespace thunk
 }  // namespace ppapi