NaCl: Pull in NaCl's integrated runtime (IRT) library via DEPS

build/download_nacl_irt.py

 #!/usr/bin/env python
 # 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.
 
 import hashlib
 import optparse
 import os
 import urllib2
 import sys
@@ skipping 145 matching lines @@
     sys.stdout.write('No --file_hash arguments given: nothing to update\n')
 
   new_deps = []
   for arch, expected_hash in options.file_hashes:
     url = '%s/r%s/irt_%s.nexe' % (options.base_url,
                                   options.nacl_revision,
                                   arch)
     dest_dir = os.path.join(nacl_dir, 'irt_binaries')
     if not os.path.exists(dest_dir):
       os.makedirs(dest_dir)
-    dest_path = os.path.join(dest_dir, 'irt_%s.nexe' % arch)
+    dest_path = os.path.join(dest_dir, 'nacl_irt_%s.nexe' % arch)
     DownloadFileWithRetry(dest_path, url)
     downloaded_hash = HashFile(dest_path)
     if downloaded_hash != expected_hash:
       sys.stdout.write(
           'Hash mismatch: the file downloaded from URL %r had hash %r, '
           'but we expected %r\n' % (url, downloaded_hash, expected_hash))
       new_deps.append('  "nacl_irt_hash_%s": "%s",\n'
                       % (arch, downloaded_hash))
 
   if len(new_deps) > 0:
     sys.stdout.write('\nIf you have changed nacl_revision, the DEPS file '
                      'probably needs to be updated with the following:\n%s\n'
                      % ''.join(new_deps))
     sys.exit(1)
 
 
 if __name__ == '__main__':
   Main()