Enable mmap and identity-based validation caching on pnacl-{llc,ld}.nexe

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

 // Copyright (c) 2013 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.
 
 // Some common file utilities for plugin code.
 
 #ifndef NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_FILE_UTILS_H_
 #define NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_FILE_UTILS_H_
 
 #include "native_client/src/include/nacl_string.h"
 #include "native_client/src/include/portability_io.h"
 #include "ppapi/c/pp_stdint.h"
+#include "ppapi/c/private/pp_file_handle.h"
 
 namespace plugin {
 namespace file_utils {
 
 enum StatusCode {
   PLUGIN_FILE_SUCCESS = 0,
   PLUGIN_FILE_ERROR_MEM_ALLOC = 1,
   PLUGIN_FILE_ERROR_OPEN = 2,
   PLUGIN_FILE_ERROR_FILE_TOO_LARGE = 3,
   PLUGIN_FILE_ERROR_STAT = 4,
   PLUGIN_FILE_ERROR_READ = 5
 };
 
 // Slurp the whole contents of the given file (|fd| - open file descriptor) into
 // |out_buf|. |max_size_to_read| is the maximal allowed size of the file.
 // If the file turns out to be larger, an error is returned. In any case,
 // |fd| is closed.
 StatusCode SlurpFile(int32_t fd,
                      nacl::string& out_buf,
                      size_t max_size_to_read = (1 << 20));
 
+int32_t ConvertFileDescriptor(PP_FileHandle handle);
+
 }  // namespace file_utils
 }  // namespace plugin
 
 #endif  // NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_FILE_UTILS_H_
-