Move DirectoryReader::ReadEntries to FileRef::ReadDirectoryEntries

ppapi/cpp/dev/directory_entry_dev.h

-// Copyright (c) 2011 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.
-
-#ifndef PPAPI_CPP_DEV_DIRECTORY_ENTRY_DEV_H_
-#define PPAPI_CPP_DEV_DIRECTORY_ENTRY_DEV_H_
-
-#include "ppapi/c/dev/ppb_directory_reader_dev.h"
-#include "ppapi/cpp/file_ref.h"
-
-namespace pp {
-
-class DirectoryEntry_Dev {
- public:
-  DirectoryEntry_Dev();
-  DirectoryEntry_Dev(PassRef, const PP_DirectoryEntry_Dev& data);
-  DirectoryEntry_Dev(const DirectoryEntry_Dev& other);
-
-  ~DirectoryEntry_Dev();
-
-  DirectoryEntry_Dev& operator=(const DirectoryEntry_Dev& other);
-
-  // Returns true if the DirectoryEntry is invalid or uninitialized.
-  bool is_null() const { return !data_.file_ref; }
-
-  // Returns the FileRef held by this DirectoryEntry.
-  FileRef file_ref() const { return FileRef(data_.file_ref); }
-
-  // Returns the type of the file referenced by this DirectoryEntry.
-  PP_FileType file_type() const { return data_.file_type; }
-
- private:
-  PP_DirectoryEntry_Dev data_;
-};
-
-}  // namespace pp
-
-#endif  // PPAPI_CPP_DEV_DIRECTORY_ENTRY_DEV_H_