Pepper: Remove file_utils from trusted plugin.

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

-// 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.
-
-#include "ppapi/native_client/src/trusted/plugin/file_utils.h"
-
-#include <fcntl.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#include <sys/stat.h>
-#include <sys/types.h>
-
-#include "native_client/src/include/nacl_scoped_ptr.h"
-#include "native_client/src/include/portability_io.h"
-#include "native_client/src/include/portability_string.h"
-
-
-namespace plugin {
-namespace file_utils {
-
-StatusCode SlurpFile(int32_t fd,
-                     nacl::string& out_buf,
-                     size_t max_size_to_read) {
-  struct stat stat_buf;
-  if (fstat(fd, &stat_buf) != 0) {
-    CLOSE(fd);
-    return PLUGIN_FILE_ERROR_STAT;
-  }
-
-  // Figure out how large a buffer we need to slurp the whole file (with a
-  // '\0' at the end).
-  size_t bytes_to_read = static_cast<size_t>(stat_buf.st_size);
-  if (bytes_to_read > max_size_to_read - 1) {
-    CLOSE(fd);
-    return PLUGIN_FILE_ERROR_FILE_TOO_LARGE;
-  }
-
-  FILE* input_file = fdopen(fd, "rb");
-  if (!input_file) {
-    CLOSE(fd);
-    return PLUGIN_FILE_ERROR_OPEN;
-  }
-  // From here on, closing input_file will automatically close fd.
-
-  nacl::scoped_array<char> buffer(new char[bytes_to_read + 1]);
-  if (buffer == NULL) {
-    fclose(input_file);
-    return PLUGIN_FILE_ERROR_MEM_ALLOC;
-  }
-
-  size_t total_bytes_read = 0;
-  while (bytes_to_read > 0) {
-    size_t bytes_this_read = fread(&buffer[total_bytes_read],
-                                   sizeof(char),
-                                   bytes_to_read,
-                                   input_file);
-    if (bytes_this_read < bytes_to_read && (feof(input_file) ||
-                                            ferror(input_file))) {
-      fclose(input_file);
-      return PLUGIN_FILE_ERROR_READ;
-    }
-    total_bytes_read += bytes_this_read;
-    bytes_to_read -= bytes_this_read;
-  }
-
-  fclose(input_file);
-  buffer[total_bytes_read] = '\0';
-  out_buf = buffer.get();
-  return PLUGIN_FILE_SUCCESS;
-}
-
-}  // namespace file_utils
-}  // namespace plugin
-