Add support for variations controlled overriding UI strings to the variations service.

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.
 
 {
   'targets': [
     {
       'target_name': 'browser',
       'type': 'static_library',
       'variables': { 'enable_wexit_time_destructors': 1, },
@@ skipping 1200 matching lines @@
         'browser/metrics/thread_watcher.cc',
         'browser/metrics/thread_watcher.h',
         'browser/metrics/thread_watcher_android.cc',
         'browser/metrics/thread_watcher_android.h',
         'browser/metrics/time_ticks_experiment_win.cc',
         'browser/metrics/time_ticks_experiment_win.h',
         'browser/metrics/tracking_synchronizer.cc',
         'browser/metrics/tracking_synchronizer.h',
         'browser/metrics/tracking_synchronizer_observer.h',
         'browser/metrics/variations/generated_resources_map.h',
+        'browser/metrics/variations/generated_resources_map_lookup.cc',
         'browser/metrics/variations/variations_http_header_provider.cc',
         'browser/metrics/variations/variations_http_header_provider.h',
         'browser/metrics/variations/variations_registry_syncer_win.cc',
         'browser/metrics/variations/variations_registry_syncer_win.h',
         'browser/metrics/variations/variations_request_scheduler.cc',
         'browser/metrics/variations/variations_request_scheduler.h',
         'browser/metrics/variations/variations_request_scheduler_mobile.cc',
         'browser/metrics/variations/variations_request_scheduler_mobile.h',
         'browser/metrics/variations/variations_service.cc',
         'browser/metrics/variations/variations_service.h',
@@ skipping 2479 matching lines @@
             'package_name': 'org/chromium/chrome/browser',
             'template_deps': ['browser/android/tab_load_status.h'],
           },
           'includes': [ '../build/android/java_cpp_template.gypi' ],
         },
       ],
      },
     ],
   ],
 }