Clean up repack.py and repack_locale.py usage.

chrome/chrome_repack_chrome_200_percent.gypi

 # 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.
 {
   'action_name': 'repack_chrome_resources_200_percent',
   'variables': {
     'pak_inputs': [
       '<(SHARED_INTERMEDIATE_DIR)/components/component_resources_200_percent.pak',
       '<(SHARED_INTERMEDIATE_DIR)/ui/ui_resources/ui_resources_200_percent.pak',
       '<(grit_out_dir)/renderer_resources_200_percent.pak',
       '<(grit_out_dir)/theme_resources_200_percent.pak',
     ],
+    'pak_output': '<(SHARED_INTERMEDIATE_DIR)/repack/chrome_200_percent.pak',
     'conditions': [
       ['OS != "ios"', {
         'pak_inputs': [
           '<(SHARED_INTERMEDIATE_DIR)/webkit/webkit_resources_200_percent.pak',
         ],
       }],
       ['use_ash==1', {
         'pak_inputs': [
           '<(SHARED_INTERMEDIATE_DIR)/ash/ash_resources/ash_resources_200_percent.pak',
         ],
       }],
     ],
   },
-  'inputs': [
-    '<(repack_path)',
-    '<@(pak_inputs)',
-  ],
-  'outputs': [
-    '<(SHARED_INTERMEDIATE_DIR)/repack/chrome_200_percent.pak',
-  ],
-  'action': ['python', '<(repack_path)', '<@(_outputs)', '<@(pak_inputs)'],
+  'includes': [ '../build/repack_action.gypi' ],
 }