[Android] Fix proguard

build/java.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.
 
 # This file is meant to be included into a target to provide a rule
 # to build Java in a consistent manner.
 #
 # To use this, create a gyp target with the following form:
 # {
 #   'target_name': 'my-package_java',
@@ skipping 264 matching lines @@
         'python', '<(DEPTH)/build/android/gyp/jar_toc.py',
         '--jar-path=<(jar_path)',
         '--toc-path=<(jar_path).TOC',
 
         # TODO(newt): remove this once http://crbug.com/177552 is fixed in ninja.
         '--ignore=>!(echo \'>(_inputs)\' | md5sum)',
       ]
     },
     {
       'action_name': 'dex_<(_target_name)',
-      'message': 'Dexing <(_target_name) jar',
-      'inputs': [
-        '<(DEPTH)/build/android/gyp/util/build_utils.py',
-        '<(DEPTH)/build/android/gyp/util/md5_check.py',
-        '<(DEPTH)/build/android/gyp/dex.py',
-        '<(jar_path)',
-      ],
-      'outputs': [
-        '<(dex_path)',
-      ],
-      'action': [
-        'python', '<(DEPTH)/build/android/gyp/dex.py',
-        '--dex-path=<(dex_path)',
-        '--android-sdk-root=<(android_sdk_root)',
-
-        # TODO(newt): remove this once http://crbug.com/177552 is fixed in ninja.
-        '--ignore=>!(echo \'>(_inputs)\' | md5sum)',
-
-        '<(jar_path)',
-      ]
+      'variables': {
+        'dex_input_paths': [ '<(jar_path)' ],
+        'output_path': '<(dex_path)',
+      },
+      'includes': [ 'android/dex_action.gypi' ],
     },
-
   ],
 }