Do not remove courgette from the tarball, looks like it's required for compile

tools/export_tarball/export_tarball.py

 #!/usr/bin/env python
 # Copyright (c) 2012 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.
 
 """
 This tool creates a tarball with all the sources, but without .svn directories.
 
 It can also remove files which are not strictly required for build, so that
 the resulting tarball can be reasonably small (last time it was ~110 MB).
@@ skipping 56 matching lines @@
     'webkit/tools/test/reference_build',
 )
 
 TESTDIRS = (
     'chrome/test/data',
     'content/test/data',
     'media/test/data',
     'net/data',
 )
 
-PRUNEDDIRS = (
-    'courgette',
-)
-
 
 def GetSourceDirectory():
   return os.path.realpath(
     os.path.join(os.path.dirname(__file__), '..', '..', '..', 'src'))
 
 
 # Workaround lack of the exclude parameter in add method in python-2.4.
 # TODO(phajdan.jr): remove the workaround when it's not needed on the bot.
 class MyTarFile(tarfile.TarFile):
   def set_remove_nonessential_files(self, remove):
     self.__remove_nonessential_files = remove
 
   def add(self, name, arcname=None, recursive=True, exclude=None, filter=None):
     head, tail = os.path.split(name)
     if tail in ('.svn', '.git'):
       return
 
     if self.__remove_nonessential_files:
       # WebKit change logs take quite a lot of space. This saves ~10 MB
       # in a bzip2-compressed tarball.
       if 'ChangeLog' in name:
         return
 
       # Remove contents of non-essential directories, but preserve gyp files,
       # so that build/gyp_chromium can work.
-      for nonessential_dir in (NONESSENTIAL_DIRS + TESTDIRS + PRUNEDDIRS):
+      for nonessential_dir in (NONESSENTIAL_DIRS + TESTDIRS):
         dir_path = os.path.join(GetSourceDirectory(), nonessential_dir)
         if (name.startswith(dir_path) and
             os.path.isfile(name) and
             'gyp' not in name):
           return
 
     tarfile.TarFile.add(self, name, arcname=arcname, recursive=recursive)
 
 
 def main(argv):
@@ skipping 46 matching lines @@
 
   if subprocess.call(['xz', '-9', output_fullname]) != 0:
     print 'xz -9 failed!'
     return 1
 
   return 0
 
 
 if __name__ == "__main__":
   sys.exit(main(sys.argv[1:]))