New build flag system, convert Google Now flag

chrome/chrome_renderer.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.
 
 {
   'variables': {
     'chrome_renderer_sources': [
       'renderer/banners/app_banner_client.cc',
       'renderer/banners/app_banner_client.h',
       'renderer/benchmarking_extension.cc',
@@ skipping 219 matching lines @@
       'renderer/pepper/chrome_pdf_print_client.cc',
       'renderer/pepper/chrome_pdf_print_client.h',
     ],
   },
   'targets': [
     {
       'target_name': 'renderer',
       'type': 'static_library',
       'variables': { 'enable_wexit_time_destructors': 1, },
       'dependencies': [
+        'chrome_common_features',
         'common',
         'common_mojo_bindings',
         'chrome_resources.gyp:chrome_resources',
         'chrome_resources.gyp:chrome_strings',
         '../third_party/re2/re2.gyp:re2',
         '../components/components.gyp:autofill_content_renderer',
         '../components/components.gyp:content_settings_content_common',
         '../components/components.gyp:cdm_renderer',
         '../components/components.gyp:data_reduction_proxy_content_common',
         '../components/components.gyp:data_reduction_proxy_core_common',
@@ skipping 149 matching lines @@
               'export_dependent_settings': [
                 '<(allocator_target)',
               ],
             }],
           ],
         }],
       ],
     },
   ],
 }