Added sha256 sums for build outputs

tools/dartium/upload_steps.py

 #!/usr/bin/python
 
 # Copyright (c) 2014 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.
 
 """Steps to archive dartium, content_shell, and chromedriver from buildbots.
 
 Imported by buildbot_annotated_steps.py and multivm_archive.py
 """
@@ skipping 179 matching lines @@
     return status
   print 'Uploaded: ' + output
 
   # Set ACL.
   if ACL is not None:
     cmd = [GSUTIL, 'setacl', ACL, target]
     (status, output) = ExecuteCommand(cmd)
   return status
 
 
-def UploadFile(local_path, remote_path, create_md5sum=False):
+def UploadFile(local_path, remote_path, checksum_files=False):
   # Copy it to the new unified gs://dart-archive bucket
   gsutil = bot_utils.GSUtil()
   gsutil.upload(local_path, remote_path, public=True)
-  if create_md5sum:
+  if checksum_files:
     # 'local_path' may have a different filename than 'remote_path'. So we need
     # to make sure the *.md5sum file contains the correct name.
     assert '/' in remote_path and not remote_path.endswith('/')
     mangled_filename = remote_path[remote_path.rfind('/') + 1:]
-    local_md5sum = bot_utils.CreateChecksumFile(local_path, mangled_filename)
+    local_md5sum = bot_utils.CreateMD5ChecksumFile(local_path,
+                                                   mangled_filename)
     gsutil.upload(local_md5sum, remote_path + '.md5sum', public=True)
-
+    local_sha256 = bot_utils.CreateSha256ChecksumFile(local_path,
+                                                      mangled_filename)
+    gsutil.upload(local_sha256, remote_path + '.sha256sum', public=True)
 
 def ExecuteCommand(cmd):
   """Execute a command in a subprocess.
   """
   print 'Executing: ' + ' '.join(cmd)
   try:
     pipe = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
     (output, error) = pipe.communicate()
     if pipe.returncode != 0:
       print 'Execution failed: ' + str(error)
@@ skipping 42 matching lines @@
 def RemoveArchives(archives):
   """Remove the list of archives in Google storage.
   """
   for archive in archives:
     if archive.find(GS_SITE) == 0:
       cmd = [GSUTIL, 'rm', archive.rstrip()]
       (status, _) = ExecuteCommand(cmd)
       if status != 0:
         return status
   return 0