New build flag system, convert Google Now flag

chrome/chrome_utility.gypi

 # Copyright 2014 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.
 
 {
   'variables': {
     'chrome_utility_sources': [
       'utility/chrome_content_utility_client.cc',
       'utility/chrome_content_utility_client.h',
       'utility/chrome_content_utility_ipc_whitelist.cc',
@@ skipping 108 matching lines @@
         '../components/components.gyp:safe_json_parser_message_filter',
         '../components/components.gyp:search_engines',
         '../components/url_formatter/url_formatter.gyp:url_formatter',
         '../content/content.gyp:content_common',
         '../content/content.gyp:content_utility',
         '../media/media.gyp:media',
         '../skia/skia.gyp:skia',
         '../third_party/libxml/libxml.gyp:libxml',
         '<(DEPTH)/chrome/chrome_resources.gyp:chrome_resources',
         '<(DEPTH)/chrome/chrome_resources.gyp:chrome_strings',
+        'chrome_common_features',
         'common',
       ],
       'include_dirs': [
         '..',
         '<(grit_out_dir)',
       ],
       'sources': [
         '<@(chrome_utility_sources)',
       ],
       'conditions': [
@@ skipping 84 matching lines @@
               },
             }],
           ],
         }],
       ],
       # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
       'msvs_disabled_warnings': [ 4267, ],
     },
   ],
 }