NaCl: Move src/trusted/plugin/ to components/nacl/renderer/plugin/

ppapi/native_client/src/trusted/plugin/temporary_file.h

-// 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.
-
-#ifndef NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_TEMPORARY_FILE_H_
-#define NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_TEMPORARY_FILE_H_
-
-#include "native_client/src/include/nacl_macros.h"
-#include "native_client/src/trusted/desc/nacl_desc_wrapper.h"
-
-#include "ppapi/c/private/pp_file_handle.h"
-
-namespace plugin {
-
-class Plugin;
-
-// Translation creates two temporary files.  The first temporary file holds
-// the object file created by llc.  The second holds the nexe produced by
-// the linker.  Both of these temporary files are used to both write and
-// read according to the following matrix:
-//
-// PnaclCoordinator::obj_file_:
-//     written by: llc     (passed in explicitly through SRPC)
-//     read by:    ld      (returned via lookup service from SRPC)
-// PnaclCoordinator::nexe_file_:
-//     written by: ld      (passed in explicitly through SRPC)
-//     read by:    sel_ldr (passed in explicitly to command channel)
-//
-
-// TempFile represents a file used as a temporary between stages in
-// translation.  It is automatically deleted when all handles are closed
-// (or earlier -- immediately unlinked on POSIX systems).  The file is only
-// opened, once, but because both reading and writing are necessary (and in
-// different processes), the user should reset / seek back to the beginning
-// of the file between sessions.
-class TempFile {
- public:
-  // Create a TempFile.
-  TempFile(Plugin* plugin, PP_FileHandle handle);
-  ~TempFile();
-
-  // Opens a temporary file object and descriptor wrapper referring to the file.
-  // If |writeable| is true, the descriptor will be opened for writing, and
-  // write_wrapper will return a valid pointer, otherwise it will return NULL.
-  int32_t Open(bool writeable);
-  // Resets file position of the handle, for reuse.
-  bool Reset();
-
-  // Accessors.
-  // The nacl::DescWrapper* for the writeable version of the file.
-  nacl::DescWrapper* write_wrapper() { return write_wrapper_.get(); }
-  nacl::DescWrapper* read_wrapper() { return read_wrapper_.get(); }
-
-  // Returns the handle to the file repesented and resets the internal handle
-  // and all wrappers.
-  PP_FileHandle TakeFileHandle();
-
- private:
-  NACL_DISALLOW_COPY_AND_ASSIGN(TempFile);
-
-  Plugin* plugin_;
-  nacl::scoped_ptr<nacl::DescWrapper> read_wrapper_;
-  nacl::scoped_ptr<nacl::DescWrapper> write_wrapper_;
-  PP_FileHandle internal_handle_;
-};
-
-}  // namespace plugin
-
-#endif  // NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_TEMPORARY_FILE_H_