Refactored the PPB_Flash_File_ModuleLocal/FileRef to the new ppapi resource model

ppapi/shared_impl/ppb_flash_shared.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/shared_impl/ppb_flash_shared.h"
-
-namespace ppapi {
-
-PPB_Flash_Shared::PPB_Flash_Shared() {
-}
-
-PPB_Flash_Shared::~PPB_Flash_Shared() {
-}
-
-void PPB_Flash_Shared::FreeDirContents(PP_Instance instance,
-                                       PP_DirContents_Dev* contents) {
-  for (int32_t i = 0; i < contents->count; ++i)
-    delete[] contents->entries[i].name;
-  delete[] contents->entries;
-  delete contents;
-}
-
-}  // namespace ppapi