[Merge to 2756] Revert "Compress .pak resources with new option: "type=GZIPPABLE_BINDATA""

tools/grit/grit/format/gzip_string.py

Index: tools/grit/grit/format/gzip_string.py
diff --git a/tools/grit/grit/format/gzip_string.py b/tools/grit/grit/format/gzip_string.py
deleted file mode 100644
index 4f54aac1da04c5803e28d74aa4e211f67048c8a7..0000000000000000000000000000000000000000
--- a/tools/grit/grit/format/gzip_string.py
+++ /dev/null
@@ -1,43 +0,0 @@
-# Copyright (c) 2016 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.
-"""Provides gzip utilities for strings.
-"""
-import cStringIO
-import gzip
-import subprocess
-
-
-def GzipStringRsyncable(data):
-  # Make call to host system's gzip to get access to --rsyncable option. This
-  # option makes updates much smaller - if one line is changed in the resource,
-  # it won't have to push the entire compressed resource with the update.
-  # Instead, --rsyncable breaks the file into small chunks, so that one doesn't
-  # affect the other in compression, and then only that chunk will have to be
-  # updated.
-  gzip_proc = subprocess.Popen(['gzip', '--stdout', '--rsyncable',
-                                '--best', '--no-name'],
-                               stdin=subprocess.PIPE,
-                               stdout=subprocess.PIPE,
-                               stderr=subprocess.PIPE)
-  data, stderr = gzip_proc.communicate(data)
-  if gzip_proc.returncode != 0:
-    raise subprocess.CalledProcessError(gzip_proc.returncode, 'gzip',
-                                        stderr)
-  return data
-
-
-def GzipString(data):
-  # Gzipping using Python's built in gzip: Windows doesn't ship with gzip, and
-  # OSX's gzip does not have an --rsyncable option built in. Although this is
-  # not preferable to --rsyncable, it is an option for the systems that do
-  # not have --rsyncable. If used over GzipStringRsyncable, the primary
-  # difference of this function's compression will be larger updates every time
-  # a compressed resource is changed.
-  gzip_output = cStringIO.StringIO()
-  with gzip.GzipFile(mode='wb', compresslevel=9, fileobj=gzip_output,
-                     mtime=0) as gzip_file:
-    gzip_file.write(data)
-  data = gzip_output.getvalue()
-  gzip_output.close()
-  return data