Ignore chown.

trace_inputs.py

 #!/usr/bin/env python
 # coding=utf-8
 # 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.
 
 """Traces an executable and its child processes and extract the files accessed
 by them.
 
 The implementation uses OS-specific API. The native Kernel logger and the ETL
@@ skipping 1364 matching lines @@
       @parse_args(r'^\"(.+?)\", [FKORWX_|]+$', True)
       def handle_access(self, args, _result):
         self._handle_file(args[0], True)
 
       @parse_args(r'^\"(.+?)\"$', True)
       def handle_chdir(self, args, _result):
         """Updates cwd."""
         self.cwd = self.RelativePath(self, args[0])
         logging.debug('handle_chdir(%d, %s)' % (self.pid, self.cwd))
 
+      def handle_chown(self, _args, result):
+        pass
+
       def handle_clone(self, _args, result):
         self._handling_forking('clone', result)
 
       def handle_close(self, _args, _result):
         pass
 
       def handle_chmod(self, _args, _result):
         pass
 
       def handle_creat(self, _args, _result):
@@ skipping 2234 matching lines @@
     main_impl(argv)
   except TracingFailure, e:
     sys.stderr.write('\nError: ')
     sys.stderr.write(str(e))
     sys.stderr.write('\n')
     return 1
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))