This adds a formatter for plurals that works for all locales.

chrome/chrome_common.gypi

 # Copyright (c) 2011 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.
 
 {
   'target_defaults': {
     'variables': {
       'chrome_common_target': 0,
     },
     'target_conditions': [
@@ skipping 49 matching lines @@
           'common/metrics_helpers.h',
           'common/multi_process_lock.h',
           'common/multi_process_lock_linux.cc',
           'common/multi_process_lock_mac.cc',
           'common/multi_process_lock_win.cc',
           'common/nacl_cmd_line.cc',
           'common/nacl_cmd_line.h',
           'common/nacl_messages.cc',
           'common/nacl_messages.h',
           'common/nacl_types.h',
+          'common/plural_formatter.cc',
+          'common/plural_formatter.h',
           'common/profiling.cc',
           'common/profiling.h',
           'common/ref_counted_util.h',
           'common/result_codes.h',
           'common/safebrowsing_messages.h',
           'common/sandbox_policy.cc',
           'common/sandbox_policy.h',
           'common/switch_utils.cc',
           'common/switch_utils.h',
           'common/time_format.cc',
@@ skipping 399 matching lines @@
           'configurations': {
             'Common_Base': {
               'msvs_target_platform': 'x64',
             },
           },
         },
       ],
     }],
   ],
 }