NOT TO COMMITTED: Update mojo sdk to rev 0018e6a91b75bcb941c867f8a7aa1753c3b53a13

third_party/mojo/src/mojo/public/tools/gn/zip.py

 #!/usr/bin/env python
 #
 # Copyright 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.
 
 """Archives a set of files.
 """
 
 import ast
 import optparse
 import os
 import sys
 import zipfile
 
 def DoZip(inputs, zip_inputs, output, base_dir):
   files = []
-  with zipfile.ZipFile(output, 'w') as outfile:
+  with zipfile.ZipFile(output, 'w', zipfile.ZIP_DEFLATED) as outfile:
     for f in inputs:
       file_name = os.path.relpath(f, base_dir)
       files.append(file_name)
       outfile.write(f, file_name)
     for zf_name in zip_inputs:
       with zipfile.ZipFile(zf_name, 'r') as zf:
         for f in zf.namelist():
           if f not in files:
             files.append(f)
             with zf.open(f) as zff:
@@ skipping 18 matching lines @@
   zip_inputs = []
   if options.zip_inputs:
     zip_inputs = ast.literal_eval(options.zip_inputs)
   output = options.output
   base_dir = options.base_dir
 
   DoZip(inputs, zip_inputs, output, base_dir)
 
 if __name__ == '__main__':
   sys.exit(main())