Revert of Fix pylint warnings in webkitpy/common/.

third_party/WebKit/Tools/Scripts/webkitpy/common/system/executive_mock.py

 # Copyright (C) 2011 Google Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #    * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #    * Redistributions in binary form must reproduce the above
 # copyright notice, this list of conditions and the following disclaimer
@@ skipping 76 matching lines @@
         _log.info("MOCK running_pids: %s", running_pids)
         return running_pids
 
     def command_for_printing(self, args):
         string_args = map(unicode, args)
         return " ".join(string_args)
 
     def run_command(self,
                     args,
                     cwd=None,
-                    input_func=None,
+                    input=None,
                     error_handler=None,
                     return_exit_code=False,
                     return_stderr=True,
                     decode_output=False,
                     env=None,
                     debug_logging=False):
 
         self.calls.append(args)
 
         assert isinstance(args, list) or isinstance(args, tuple)
         if self._should_log:
             env_string = ""
             if env:
                 env_string = ", env=%s" % env
             input_string = ""
-            if input_func:
-                input_string = ", input=%s" % input_func
+            if input:
+                input_string = ", input=%s" % input
             _log.info("MOCK run_command: %s, cwd=%s%s%s", args, cwd, env_string, input_string)
         output = "MOCK output of child process"
 
         if self._should_throw_when_run.intersection(args):
             raise ScriptError("Exception for %s" % args, output="MOCK command output")
 
         if self._should_throw:
             raise ScriptError("MOCK ScriptError", output=output)
 
         if return_exit_code and self._should_return_zero_when_run.intersection(args):
@@ skipping 58 matching lines @@
         self._output = output
         self._stderr = stderr
         self._exit_code = exit_code
         self._exception = exception
         self._run_command_fn = run_command_fn
         self.calls = []
 
     def run_command(self,
                     args,
                     cwd=None,
-                    input_func=None,
+                    input=None,
                     error_handler=None,
                     return_exit_code=False,
                     return_stderr=True,
                     decode_output=False,
                     env=None,
                     debug_logging=False):
         self.calls.append(args)
         assert isinstance(args, list) or isinstance(args, tuple)
         assert all(isinstance(arg, basestring) for arg in args)
         if self._exception:
             raise self._exception  # pylint: disable=E0702
         if self._run_command_fn:
             return self._run_command_fn(args)
         if return_exit_code:
             return self._exit_code
         if self._exit_code and error_handler:
             script_error = ScriptError(script_args=args, exit_code=self._exit_code, output=self._output)
             error_handler(script_error)
         if return_stderr:
             return self._output + self._stderr
         return self._output