Introduce new files ios/chrome/common/chrome_constants.{cc,h}.

ios/chrome/ios_chrome.gyp

 # 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': {
     'chromium_code': 1,
   },
   'targets': [
     {
@@ skipping 164 matching lines @@
         'browser/browser_state/browser_state_info_cache.cc',
         'browser/browser_state/browser_state_info_cache.h',
         'browser/browser_state/browser_state_info_cache_observer.h',
         'browser/browser_state/browser_state_keyed_service_factories.h',
         'browser/browser_state/browser_state_keyed_service_factories.mm',
         'browser/browser_state/browser_state_otr_helper.cc',
         'browser/browser_state/browser_state_otr_helper.h',
         'browser/browser_state_metrics/browser_state_metrics.cc',
         'browser/browser_state_metrics/browser_state_metrics.h',
         'browser/browsing_data_change_listening.h',
+        'browser/chrome_constants.cc',
+        'browser/chrome_constants.h',
         'browser/chrome_paths.h',
         'browser/chrome_paths.mm',
         'browser/chrome_paths_internal.h',
         'browser/chrome_switches.cc',
         'browser/chrome_switches.h',
         'browser/chrome_url_constants.cc',
         'browser/chrome_url_constants.h',
         'browser/chrome_url_util.h',
         'browser/chrome_url_util.mm',
         'browser/component_updater/ios_component_updater_configurator.cc',
@@ skipping 463 matching lines @@
             '../../components/components.gyp:omnibox_browser',
             '../../components/components.gyp:rlz',
             '../../components/components.gyp:search_engines',
             '../../rlz/rlz.gyp:rlz_lib',
           ],
         },
       ],
     }],
   ],
 }