[Bindings][Refactoring] Make binding scripts use utilities to handle pickle files

third_party/WebKit/Source/bindings/scripts/generate_init_partial_interfaces.py

 #!/usr/bin/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.
 
 """Generate initPartialInterfacesInModules(), which registers partial interfaces in modules to core interfaces."""
 
-import cPickle as pickle
+# pylint: disable=relative-import
+
 from optparse import OptionParser
 import os
 import posixpath
 import sys
+
 from utilities import get_file_contents
 from utilities import idl_filename_to_interface_name
 from utilities import read_idl_files_list_from_file
 from utilities import should_generate_impl_file_from_idl
 from utilities import write_file
 
 
 _COPYRIGHT = """// 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.
@@ skipping 74 matching lines @@
     content = _INIT_PARTIAL_INTERFACE % (
         _COPYRIGHT,
         '\n'.join(includes),
         '\n'.join(initialize_calls))
 
     write_file(content, options.output)
 
 
 if __name__ == '__main__':
     sys.exit(main())