Add a wrapper for grit_action.gypi for chrome specific variables.

chrome/chrome_features.gypi

 # Copyright 2015 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 is the GYP equivalent of //chrome/common/features.gni.
 # Please keep in sync!
 
 {
   'variables': {
     'variables': {
       # Conditional variables.
       'conditions': [
         ['OS=="android"', {
           'android_java_ui%': 1,
@@ skipping 16 matching lines @@
     # accessible.
     'enable_google_now%': '<(enable_google_now)',
     'android_java_ui%': '<(android_java_ui)',
     'use_vulcanize%': '<(use_vulcanize)',
 
     # Grit defines based on the feature flags. These must be manually added to
     # grit targets.
     'chrome_grit_defines': [
       '-D', 'enable_google_now=<(enable_google_now)',
       '-D', 'use_vulcanize=<(use_vulcanize)',
-    ]
+    ],
   },
 }