Allow embedders to share code to override UI strings.

chrome/chrome_browser.gypi

 # Copyright 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': {
     # All .cc, .h, .m, and .mm files under browser except for:
     # * tests and mocks.
     # * code below browser/chromeos
     # * code below browser/extensions
@@ skipping 1868 matching lines @@
       'browser/metrics/thread_watcher.h',
       'browser/metrics/thread_watcher_android.cc',
       'browser/metrics/thread_watcher_android.h',
       'browser/metrics/thread_watcher_report_hang.cc',
       'browser/metrics/thread_watcher_report_hang.h',
       'browser/metrics/time_ticks_experiment_win.cc',
       'browser/metrics/time_ticks_experiment_win.h',
       'browser/metrics/variations/chrome_variations_service_client.cc',
       'browser/metrics/variations/chrome_variations_service_client.h',
       'browser/metrics/variations/generated_resources_map.h',
-      'browser/metrics/variations/generated_resources_map_lookup.cc',
       'browser/metrics/variations/variations_registry_syncer_win.cc',
       'browser/metrics/variations/variations_registry_syncer_win.h',
     ],
     'chrome_browser_nacl_sources': [
       'browser/nacl_host/nacl_browser_delegate_impl.cc',
       'browser/nacl_host/nacl_browser_delegate_impl.h',
       'browser/nacl_host/nacl_infobar_delegate.cc',
       'browser/nacl_host/nacl_infobar_delegate.h',
     ],
     'chrome_browser_net_sources': [
@@ skipping 2205 matching lines @@
             '../components/components.gyp:omnibox_browser',
             '../components/components.gyp:rlz',
             '../components/components.gyp:search_engines',
             '../rlz/rlz.gyp:rlz_lib',
           ],
         },
       ],
     }],
   ],
 }